Refactor and enhance type safety across various modules

- Updated function parameters and return types in `page-preview.ts`, `pdf-decrypt.ts`, and `pymupdf-loader.ts` for improved type safety. - Introduced type definitions for `CpdfInstance`, `PyMuPDFInstance`, and other related types to ensure better type checking. - Enhanced error handling in `sanitize.ts` by creating a utility function for error messages. - Removed unnecessary type assertions and improved type inference in `editor.ts`, `serialization.ts`, and `tools.test.ts`. - Added type definitions for markdown-it plugins to improve compatibility and type safety. - Enforced stricter TypeScript settings by enabling `noImplicitAny` in `tsconfig.json`. - Cleaned up test files by refining type assertions and ensuring consistency in type usage.
2026-03-31 17:59:49 +05:30
parent a1fc2fc3c6
commit 9d0b68e18c
114 changed files with 2577 additions and 1868 deletions
--- a/src/js/logic/add-page-labels-page.ts
+++ b/src/js/logic/add-page-labels-page.ts
@@ -3,6 +3,7 @@ import type {
  AddPageLabelsState,
  LabelRule,
  PageLabelStyleName,
+  CpdfInstance,
 } from '@/types';
 import { showAlert, showLoader, hideLoader } from '../ui.js';
 import { t } from '../i18n/index.js';
@@ -20,30 +21,6 @@ import {
 } from '../utils/page-labels.js';
 import { loadPdfDocument } from '../utils/load-pdf-document.js';

-type AddPageLabelsCpdf = {
-  setSlow?: () => void;
-  fromMemory(data: Uint8Array, userpw: string): CoherentPdf;
-  removePageLabels(pdf: CoherentPdf): void;
-  parsePagespec(pdf: CoherentPdf, pagespec: string): CpdfPageRange;
-  all(pdf: CoherentPdf): CpdfPageRange;
-  addPageLabels(
-    pdf: CoherentPdf,
-    style: CpdfLabelStyle,
-    prefix: string,
-    offset: number,
-    range: CpdfPageRange,
-    progress: boolean
-  ): void;
-  toMemory(pdf: CoherentPdf, linearize: boolean, makeId: boolean): Uint8Array;
-  deletePdf(pdf: CoherentPdf): void;
-  decimalArabic: CpdfLabelStyle;
-  lowercaseRoman: CpdfLabelStyle;
-  uppercaseRoman: CpdfLabelStyle;
-  lowercaseLetters: CpdfLabelStyle;
-  uppercaseLetters: CpdfLabelStyle;
-  noLabelPrefixOnly?: CpdfLabelStyle;
-};
-
 let labelRuleCounter = 0;

 const translate = (
@@ -464,8 +441,8 @@ async function addPageLabels() {
      ) as HTMLInputElement | null
    )?.checked ?? true;

-  let cpdf: AddPageLabelsCpdf | null = null;
-  let pdf: CoherentPdf | null = null;
+  let cpdf: CpdfInstance | null = null;
+  let pdf: unknown = null;

  try {
    cpdf = await getCpdf();
@@ -482,7 +459,7 @@ async function addPageLabels() {
      const rule = pageState.rules[index];
      const trimmedRange = rule.pageRange.trim();

-      let range: CpdfPageRange;
+      let range: unknown;
      try {
        range = trimmedRange
          ? cpdf.parsePagespec(pdf, trimmedRange)
--- a/src/js/logic/add-stamps.ts
+++ b/src/js/logic/add-stamps.ts
@@ -9,7 +9,6 @@ import { loadPdfWithPasswordPrompt } from '../utils/password-prompt.js';

 let selectedFile: File | null = null;
 let viewerIframe: HTMLIFrameElement | null = null;
-let viewerReady = false;
 let currentBlobUrl: string | null = null;

 const pdfInput = document.getElementById('pdfFile') as HTMLInputElement;
@@ -47,7 +46,7 @@ function resetState() {
    viewerContainer.removeChild(viewerIframe);
  }
  viewerIframe = null;
-  viewerReady = false;
+
  if (viewerCard) viewerCard.classList.add('hidden');
  if (saveStampedBtn) saveStampedBtn.classList.add('hidden');

@@ -157,7 +156,6 @@ async function loadPdfInViewer(file: File) {
    currentBlobUrl = null;
  }
  viewerIframe = null;
-  viewerReady = false;

  // Calculate and apply dynamic height
  await adjustViewerHeight(file);
@@ -169,7 +167,7 @@ async function loadPdfInViewer(file: File) {
  try {
    const existingPrefsRaw = localStorage.getItem('pdfjs.preferences');
    const existingPrefs = existingPrefsRaw ? JSON.parse(existingPrefsRaw) : {};
-    delete (existingPrefs as any).annotationEditorMode;
+    delete (existingPrefs as Record<string, unknown>).annotationEditorMode;
    const newPrefs = {
      ...existingPrefs,
      enablePermissions: false,
@@ -204,7 +202,14 @@ async function loadPdfInViewer(file: File) {

 function setupAnnotationViewer(iframe: HTMLIFrameElement) {
  try {
-    const win = iframe.contentWindow as any;
+    const win = iframe.contentWindow as
+      | (Window & {
+          PDFViewerApplication?: {
+            initializedPromise?: Promise<void>;
+            eventBus?: { _on?: (event: string, callback: () => void) => void };
+          };
+        })
+      | null;
    const doc = win?.document as Document | null;
    if (!win || !doc) return;

@@ -238,8 +243,6 @@ function setupAnnotationViewer(iframe: HTMLIFrameElement) {
        if (root) {
          root.classList.add('PdfjsAnnotationExtension_Comment_hidden');
        }
-
-        viewerReady = true;
      } catch (e) {
        console.error(
          'Failed to initialize annotation viewer for Add Stamps:',
@@ -304,8 +307,14 @@ if (saveStampedBtn) {
    }

    try {
-      const win = viewerIframe.contentWindow as any;
-      const extensionInstance = win?.pdfjsAnnotationExtensionInstance as any;
+      const win = viewerIframe.contentWindow as
+        | (Window & {
+            pdfjsAnnotationExtensionInstance?: {
+              exportPdf?: () => Promise<void>;
+            };
+          })
+        | null;
+      const extensionInstance = win?.pdfjsAnnotationExtensionInstance;

      if (
        extensionInstance &&
--- a/src/js/logic/add-watermark-page.ts
+++ b/src/js/logic/add-watermark-page.ts
@@ -1013,9 +1013,12 @@ async function applyWatermark() {
      'watermarked.pdf'
    );
    showAlert('Success', 'Watermark added successfully!', 'success');
-  } catch (e: any) {
+  } catch (e: unknown) {
    console.error(e);
-    showAlert('Error', e.message || 'Could not add the watermark.');
+    showAlert(
+      'Error',
+      e instanceof Error ? e.message : 'Could not add the watermark.'
+    );
  } finally {
    hideLoader();
  }
--- a/src/js/logic/bookmark-pdf.ts
+++ b/src/js/logic/bookmark-pdf.ts
@@ -7,7 +7,6 @@ import '../../css/bookmark.css';
 import { initializeGlobalShortcuts } from '../utils/shortcuts-init.js';
 import {
  truncateFilename,
-  getPDFDocument,
  formatBytes,
  downloadFile,
  escapeHtml,
@@ -46,7 +45,6 @@ let isPickingDestination = false;
 let currentPickingCallback: DestinationCallback | null = null;
 let destinationMarker: HTMLDivElement | null = null;
 let savedModalOverlay: HTMLDivElement | null = null;
-let savedModal: HTMLDivElement | null = null;
 let currentViewport: PageViewport | null = null;
 let currentZoom = 1.0;
 const fileInput = document.getElementById(
@@ -463,7 +461,6 @@ class="w-full px-2 py-1 border border-gray-300 rounded text-sm text-gray-900" />
    if (pickDestBtn) {
      pickDestBtn.addEventListener('click', () => {
        savedModalOverlay = overlay;
-        savedModal = modal;
        overlay.style.display = 'none';

        startDestinationPicking((page: number, pdfX: number, pdfY: number) => {
@@ -699,7 +696,6 @@ function cancelDestinationPicking(): void {
  if (savedModalOverlay) {
    savedModalOverlay.style.display = '';
    savedModalOverlay = null;
-    savedModal = null;
  }
 }

@@ -1317,7 +1313,7 @@ jsonInput?.addEventListener('change', async (e: Event) => {
      'JSON Loaded',
      'Loaded bookmarks from JSON. Now upload your PDF.'
    );
-  } catch (err) {
+  } catch {
    await showAlertModal('Error', 'Invalid JSON format');
  }
 });
@@ -2018,7 +2014,7 @@ jsonImportHidden?.addEventListener('change', async (e: Event) => {
    saveState();
    renderBookmarkTree();
    await showAlertModal('Success', 'Bookmarks imported from JSON!');
-  } catch (err) {
+  } catch {
    await showAlertModal('Error', 'Invalid JSON format');
  }

--- a/src/js/logic/cbz-to-pdf-page.ts
+++ b/src/js/logic/cbz-to-pdf-page.ts
@@ -2,9 +2,8 @@ import { showLoader, hideLoader, showAlert } from '../ui.js';
 import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
-import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import { loadPyMuPDF } from '../utils/pymupdf-loader.js';
+import type { PyMuPDFInstance } from '@/types';
 import JSZip from 'jszip';
 import { PDFDocument } from 'pdf-lib';

@@ -176,8 +175,8 @@ async function convertCbzToPdf(file: File): Promise<Blob> {
 }

 async function convertCbrToPdf(file: File): Promise<Blob> {
-  const pymupdf = await loadPyMuPDF();
-  return await (pymupdf as any).convertToPdf(file, { filetype: 'cbz' });
+  const pymupdf = (await loadPyMuPDF()) as PyMuPDFInstance;
+  return await pymupdf.convertToPdf(file, { filetype: 'cbz' });
 }

 document.addEventListener('DOMContentLoaded', () => {
@@ -314,12 +313,12 @@ document.addEventListener('DOMContentLoaded', () => {
          () => resetState()
        );
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      console.error(`[${TOOL_NAME}2PDF] ERROR:`, e);
      hideLoader();
      showAlert(
        'Error',
-        `An error occurred during conversion. Error: ${e.message}`
+        `An error occurred during conversion. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };
--- a/src/js/logic/change-permissions-page.ts
+++ b/src/js/logic/change-permissions-page.ts
@@ -6,7 +6,7 @@ import {
  readFileAsArrayBuffer,
 } from '../utils/helpers.js';
 import { icons, createIcons } from 'lucide';
-import { ChangePermissionsState } from '@/types';
+import { ChangePermissionsState, QpdfInstanceExtended } from '@/types';

 const pageState: ChangePermissionsState = {
  file: null,
@@ -114,7 +114,7 @@ async function changePermissions() {

  const inputPath = '/input.pdf';
  const outputPath = '/output.pdf';
-  let qpdf: any;
+  let qpdf: QpdfInstanceExtended;

  const loaderModal = document.getElementById('loader-modal');
  const loaderText = document.getElementById('loader-text');
@@ -187,10 +187,10 @@ async function changePermissions() {
    args.push('--', outputPath);
    try {
      qpdf.callMain(args);
-    } catch (qpdfError: any) {
+    } catch (qpdfError: unknown) {
      console.error('qpdf execution error:', qpdfError);

-      const errorMsg = qpdfError.message || '';
+      const errorMsg = qpdfError instanceof Error ? qpdfError.message : '';

      if (
        errorMsg.includes('invalid password') ||
@@ -219,7 +219,9 @@ async function changePermissions() {
      throw new Error('Processing resulted in an empty file.');
    }

-    const blob = new Blob([outputFile], { type: 'application/pdf' });
+    const blob = new Blob([new Uint8Array(outputFile)], {
+      type: 'application/pdf',
+    });
    downloadFile(blob, `permissions-changed-${pageState.file.name}`);

    if (loaderModal) loaderModal.classList.add('hidden');
@@ -233,16 +235,17 @@ async function changePermissions() {
    showAlert('Success', successMessage, 'success', () => {
      resetState();
    });
-  } catch (error: any) {
+  } catch (error: unknown) {
    console.error('Error during PDF permission change:', error);
    if (loaderModal) loaderModal.classList.add('hidden');

-    if (error.message === 'INVALID_PASSWORD') {
+    const errorMessage = error instanceof Error ? error.message : '';
+    if (errorMessage === 'INVALID_PASSWORD') {
      showAlert(
        'Incorrect Password',
        'The current password you entered is incorrect. Please try again.'
      );
-    } else if (error.message === 'PASSWORD_REQUIRED') {
+    } else if (errorMessage === 'PASSWORD_REQUIRED') {
      showAlert(
        'Password Required',
        'This PDF is password-protected. Please enter the current password to proceed.'
@@ -250,7 +253,7 @@ async function changePermissions() {
    } else {
      showAlert(
        'Processing Failed',
-        `An error occurred: ${error.message || 'The PDF might be corrupted or password protected.'}`
+        `An error occurred: ${errorMessage || 'The PDF might be corrupted or password protected.'}`
      );
    }
  } finally {
--- a/src/js/logic/compress-pdf-page.ts
+++ b/src/js/logic/compress-pdf-page.ts
@@ -85,7 +85,10 @@ async function performCondenseCompression(
    scrub: {
      metadata: customSettings?.removeMetadata ?? preset.scrub.metadata,
      thumbnails: customSettings?.removeThumbnails ?? preset.scrub.thumbnails,
-      xmlMetadata: (preset.scrub as any).xmlMetadata ?? false,
+      xmlMetadata:
+        'xmlMetadata' in preset.scrub
+          ? (preset.scrub as { xmlMetadata: boolean }).xmlMetadata
+          : false,
    },
    subsetFonts: customSettings?.subsetFonts ?? preset.subsetFonts,
    save: {
@@ -99,8 +102,8 @@ async function performCondenseCompression(
  try {
    const result = await pymupdf.compressPdf(fileBlob, options);
    return result;
-  } catch (error: any) {
-    const errorMessage = error?.message || String(error);
+  } catch (error: unknown) {
+    const errorMessage = error instanceof Error ? error.message : String(error);
    if (
      errorMessage.includes('PatternType') ||
      errorMessage.includes('pattern')
@@ -432,7 +435,7 @@ document.addEventListener('DOMContentLoaded', () => {
          usedMethod = 'Condense';

          // Check if fallback was used
-          if ((result as any).usedFallback) {
+          if ((result as { usedFallback?: boolean }).usedFallback) {
            usedMethod +=
              ' (without image optimization due to unsupported patterns)';
          }
@@ -551,12 +554,12 @@ document.addEventListener('DOMContentLoaded', () => {
          );
        }
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      hideLoader();
      console.error('[CompressPDF] Error:', e);
      showAlert(
        'Error',
-        `An error occurred during compression. Error: ${e.message}`
+        `An error occurred during compression. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };
--- a/src/js/logic/crop-pdf-page.ts
+++ b/src/js/logic/crop-pdf-page.ts
@@ -5,7 +5,7 @@ import { loadPdfWithPasswordPrompt } from '../utils/password-prompt.js';
 import Cropper from 'cropperjs';
 import * as pdfjsLib from 'pdfjs-dist';
 import { PDFDocument as PDFLibDocument } from 'pdf-lib';
-import { CropperState } from '@/types';
+import { CropperState, CropPercentages } from '@/types';
 import { loadPdfDocument } from '../utils/load-pdf-document.js';

 pdfjsLib.GlobalWorkerOptions.workerSrc = new URL(
@@ -167,7 +167,11 @@ async function displayPageAsImage(num: number) {
    const tempCtx = tempCanvas.getContext('2d');
    tempCanvas.width = viewport.width;
    tempCanvas.height = viewport.height;
-    await page.render({ canvasContext: tempCtx, viewport: viewport }).promise;
+    await page.render({
+      canvas: null,
+      canvasContext: tempCtx,
+      viewport: viewport,
+    }).promise;

    if (cropperState.cropper) cropperState.cropper.destroy();

@@ -251,7 +255,7 @@ async function performCrop() {
    document.getElementById('apply-to-all-toggle') as HTMLInputElement
  )?.checked;

-  let finalCropData: Record<number, any> = {};
+  let finalCropData: Record<number, CropPercentages> = {};

  if (isApplyToAll) {
    const currentCrop = cropperState.pageCrops[cropperState.currentPageNum];
@@ -286,7 +290,7 @@ async function performCrop() {

    const fileName = isDestructive ? 'flattened_crop.pdf' : 'standard_crop.pdf';
    downloadFile(
-      new Blob([finalPdfBytes], { type: 'application/pdf' }),
+      new Blob([new Uint8Array(finalPdfBytes)], { type: 'application/pdf' }),
      fileName
    );
    showAlert(
@@ -304,7 +308,7 @@ async function performCrop() {
 }

 async function performMetadataCrop(
-  cropData: Record<number, any>
+  cropData: Record<number, CropPercentages>
 ): Promise<Uint8Array> {
  const pdfToModify = await loadPdfDocument(cropperState.originalPdfBytes!);

@@ -344,7 +348,7 @@ async function performMetadataCrop(
 }

 async function performFlatteningCrop(
-  cropData: Record<number, any>
+  cropData: Record<number, CropPercentages>
 ): Promise<Uint8Array> {
  const newPdfDoc = await PDFLibDocument.create();
  const sourcePdfDocForCopying = await loadPdfDocument(
@@ -364,7 +368,11 @@ async function performFlatteningCrop(
      const tempCtx = tempCanvas.getContext('2d');
      tempCanvas.width = viewport.width;
      tempCanvas.height = viewport.height;
-      await page.render({ canvasContext: tempCtx, viewport: viewport }).promise;
+      await page.render({
+        canvas: null,
+        canvasContext: tempCtx,
+        viewport: viewport,
+      }).promise;

      const finalCanvas = document.createElement('canvas');
      const finalCtx = finalCanvas.getContext('2d');
--- a/src/js/logic/cropper.ts
+++ b/src/js/logic/cropper.ts
@@ -16,7 +16,17 @@ pdfjsLib.GlobalWorkerOptions.workerSrc = new URL(
 ).toString();

 // --- Global State for the Cropper Tool ---
-const cropperState = {
+import type { CropPercentages } from '@/types';
+import type { PDFDocumentProxy } from 'pdfjs-dist';
+
+const cropperState: {
+  pdfDoc: PDFDocumentProxy | null;
+  currentPageNum: number;
+  cropper: Cropper | null;
+  originalPdfBytes: Uint8Array | null;
+  cropperImageElement: HTMLImageElement | null;
+  pageCrops: Record<number, CropPercentages>;
+} = {
  pdfDoc: null,
  currentPageNum: 1,
  cropper: null,
@@ -46,7 +56,8 @@ function saveCurrentCrop() {
 * Renders a PDF page to the Cropper UI as an image.
 * @param {number} num The page number to render.
 */
-async function displayPageAsImage(num: any) {
+
+async function displayPageAsImage(num: number) {
  showLoader(`Rendering Page ${num}...`);

  try {
@@ -57,7 +68,11 @@ async function displayPageAsImage(num: any) {
    const tempCtx = tempCanvas.getContext('2d');
    tempCanvas.width = viewport.width;
    tempCanvas.height = viewport.height;
-    await page.render({ canvasContext: tempCtx, viewport: viewport }).promise;
+    await page.render({
+      canvas: null,
+      canvasContext: tempCtx,
+      viewport: viewport,
+    }).promise;

    if (cropperState.cropper) {
      cropperState.cropper.destroy();
@@ -107,7 +122,7 @@ async function displayPageAsImage(num: any) {
 * Handles page navigation.
 * @param {number} offset -1 for previous, 1 for next.
 */
-async function changePage(offset: any) {
+async function changePage(offset: number) {
  // Save the current page's crop before changing
  saveCurrentCrop();

@@ -137,7 +152,13 @@ function enableControls() {
 /**
 * Performs a non-destructive crop by updating the page's crop box.
 */
-async function performMetadataCrop(pdfToModify: any, cropData: any) {
+async function performMetadataCrop(
+  pdfToModify: PDFLibDocument,
+  cropData: Record<
+    string,
+    { x: number; y: number; width: number; height: number }
+  >
+) {
  for (const pageNum in cropData) {
    const pdfJsPage = await cropperState.pdfDoc.getPage(Number(pageNum));
    const viewport = pdfJsPage.getViewport({ scale: 1 });
@@ -183,7 +204,12 @@ async function performMetadataCrop(pdfToModify: any, cropData: any) {
 /**
 * Performs a destructive crop by flattening the selected area to an image.
 */
-async function performFlatteningCrop(cropData: any) {
+async function performFlatteningCrop(
+  cropData: Record<
+    string,
+    { x: number; y: number; width: number; height: number }
+  >
+) {
  const newPdfDoc = await PDFLibDocument.create();

  // Load the original PDF with pdf-lib to copy un-cropped pages from
@@ -204,7 +230,11 @@ async function performFlatteningCrop(cropData: any) {
      const tempCtx = tempCanvas.getContext('2d');
      tempCanvas.width = viewport.width;
      tempCanvas.height = viewport.height;
-      await page.render({ canvasContext: tempCtx, viewport: viewport }).promise;
+      await page.render({
+        canvas: null,
+        canvasContext: tempCtx,
+        viewport: viewport,
+      }).promise;

      const finalCanvas = document.createElement('canvas');
      const finalCtx = finalCanvas.getContext('2d');
@@ -264,7 +294,7 @@ export async function setupCropperTool() {
    cropperState.pageCrops = {};

    const arrayBuffer = await readFileAsArrayBuffer(state.files[0]);
-    cropperState.originalPdfBytes = arrayBuffer;
+    cropperState.originalPdfBytes = new Uint8Array(arrayBuffer as ArrayBuffer);
    const arrayBufferForPdfJs = (arrayBuffer as ArrayBuffer).slice(0);
    const loadingTask = getPDFDocument({ data: arrayBufferForPdfJs });

@@ -295,7 +325,7 @@ export async function setupCropperTool() {
      document.getElementById('apply-to-all-toggle') as HTMLInputElement
    ).checked;

-    let finalCropData = {};
+    let finalCropData: Record<number, CropPercentages> = {};
    if (isApplyToAll) {
      const currentCrop = cropperState.pageCrops[cropperState.currentPageNum];
      if (!currentCrop) {
@@ -308,10 +338,13 @@ export async function setupCropperTool() {
      }
    } else {
      // If not applying to all, only process pages with saved crops
-      finalCropData = Object.keys(cropperState.pageCrops).reduce((obj, key) => {
-        obj[key] = cropperState.pageCrops[key];
-        return obj;
-      });
+      finalCropData = Object.keys(cropperState.pageCrops).reduce(
+        (obj, key) => {
+          obj[Number(key)] = cropperState.pageCrops[Number(key)];
+          return obj;
+        },
+        {} as Record<number, CropPercentages>
+      );
    }

    if (Object.keys(finalCropData).length === 0) {
@@ -341,7 +374,7 @@ export async function setupCropperTool() {
        ? 'flattened_crop.pdf'
        : 'standard_crop.pdf';
      downloadFile(
-        new Blob([finalPdfBytes], { type: 'application/pdf' }),
+        new Blob([new Uint8Array(finalPdfBytes)], { type: 'application/pdf' }),
        fileName
      );
      showAlert('Success', 'Crop complete! Your download has started.');
--- a/src/js/logic/csv-to-pdf-page.ts
+++ b/src/js/logic/csv-to-pdf-page.ts
@@ -1,231 +1,255 @@
 import { showLoader, hideLoader, showAlert } from '../ui.js';
-import {
-    downloadFile,
-    readFileAsArrayBuffer,
-    formatBytes,
-} from '../utils/helpers.js';
+import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';

 document.addEventListener('DOMContentLoaded', () => {
-    state.files = [];
+  state.files = [];

-    const fileInput = document.getElementById('file-input') as HTMLInputElement;
-    const dropZone = document.getElementById('drop-zone');
-    const convertOptions = document.getElementById('convert-options');
-    const fileDisplayArea = document.getElementById('file-display-area');
-    const fileControls = document.getElementById('file-controls');
-    const addMoreBtn = document.getElementById('add-more-btn');
-    const clearFilesBtn = document.getElementById('clear-files-btn');
-    const backBtn = document.getElementById('back-to-tools');
-    const processBtn = document.getElementById('process-btn');
+  const fileInput = document.getElementById('file-input') as HTMLInputElement;
+  const dropZone = document.getElementById('drop-zone');
+  const convertOptions = document.getElementById('convert-options');
+  const fileDisplayArea = document.getElementById('file-display-area');
+  const fileControls = document.getElementById('file-controls');
+  const addMoreBtn = document.getElementById('add-more-btn');
+  const clearFilesBtn = document.getElementById('clear-files-btn');
+  const backBtn = document.getElementById('back-to-tools');
+  const processBtn = document.getElementById('process-btn');

-    if (backBtn) {
-        backBtn.addEventListener('click', () => {
-            window.location.href = import.meta.env.BASE_URL;
-        });
-    }
+  if (backBtn) {
+    backBtn.addEventListener('click', () => {
+      window.location.href = import.meta.env.BASE_URL;
+    });
+  }

-    const updateUI = async () => {
-        if (!convertOptions) return;
+  const updateUI = async () => {
+    if (!convertOptions) return;

-        if (state.files.length > 0) {
-            if (fileDisplayArea) {
-                fileDisplayArea.innerHTML = '';
+    if (state.files.length > 0) {
+      if (fileDisplayArea) {
+        fileDisplayArea.innerHTML = '';

-                for (let index = 0; index < state.files.length; index++) {
-                    const file = state.files[index];
-                    const fileDiv = document.createElement('div');
-                    fileDiv.className = 'flex items-center justify-between bg-gray-700 p-3 rounded-lg text-sm';
+        for (let index = 0; index < state.files.length; index++) {
+          const file = state.files[index];
+          const fileDiv = document.createElement('div');
+          fileDiv.className =
+            'flex items-center justify-between bg-gray-700 p-3 rounded-lg text-sm';

-                    const infoContainer = document.createElement('div');
-                    infoContainer.className = 'flex flex-col overflow-hidden';
+          const infoContainer = document.createElement('div');
+          infoContainer.className = 'flex flex-col overflow-hidden';

-                    const nameSpan = document.createElement('div');
-                    nameSpan.className = 'truncate font-medium text-gray-200 text-sm mb-1';
-                    nameSpan.textContent = file.name;
+          const nameSpan = document.createElement('div');
+          nameSpan.className =
+            'truncate font-medium text-gray-200 text-sm mb-1';
+          nameSpan.textContent = file.name;

-                    const metaSpan = document.createElement('div');
-                    metaSpan.className = 'text-xs text-gray-400';
-                    metaSpan.textContent = formatBytes(file.size);
+          const metaSpan = document.createElement('div');
+          metaSpan.className = 'text-xs text-gray-400';
+          metaSpan.textContent = formatBytes(file.size);

-                    infoContainer.append(nameSpan, metaSpan);
+          infoContainer.append(nameSpan, metaSpan);

-                    const removeBtn = document.createElement('button');
-                    removeBtn.className = 'ml-4 text-red-400 hover:text-red-300 flex-shrink-0';
-                    removeBtn.innerHTML = '<i data-lucide="trash-2" class="w-4 h-4"></i>';
-                    removeBtn.onclick = () => {
-                        state.files = state.files.filter((_, i) => i !== index);
-                        updateUI();
-                    };
-
-                    fileDiv.append(infoContainer, removeBtn);
-                    fileDisplayArea.appendChild(fileDiv);
-                }
-
-                createIcons({ icons });
-            }
-            if (fileControls) fileControls.classList.remove('hidden');
-            convertOptions.classList.remove('hidden');
-        } else {
-            if (fileDisplayArea) fileDisplayArea.innerHTML = '';
-            if (fileControls) fileControls.classList.add('hidden');
-            convertOptions.classList.add('hidden');
-        }
-    };
-
-    const resetState = () => {
-        state.files = [];
-        state.pdfDoc = null;
-        updateUI();
-    };
-
-    const convertToPdf = async () => {
-        try {
-            console.log('[CSV2PDF] Starting conversion...');
-            console.log('[CSV2PDF] Number of files:', state.files.length);
-
-            if (state.files.length === 0) {
-                showAlert('No Files', 'Please select at least one CSV file.');
-                hideLoader();
-                return;
-            }
-
-            const { convertCsvToPdf } = await import('../utils/csv-to-pdf.js');
-
-            if (state.files.length === 1) {
-                const originalFile = state.files[0];
-                console.log('[CSV2PDF] Converting single file:', originalFile.name, 'Size:', originalFile.size, 'bytes');
-
-                const pdfBlob = await convertCsvToPdf(originalFile, {
-                    onProgress: (percent, message) => {
-                        console.log(`[CSV2PDF] Progress: ${percent}% - ${message}`);
-                        showLoader(message, percent);
-                    }
-                });
-
-                console.log('[CSV2PDF] Conversion complete! PDF size:', pdfBlob.size, 'bytes');
-
-                const fileName = originalFile.name.replace(/\.csv$/i, '') + '.pdf';
-                downloadFile(pdfBlob, fileName);
-                console.log('[CSV2PDF] File downloaded:', fileName);
-
-                hideLoader();
-
-                showAlert(
-                    'Conversion Complete',
-                    `Successfully converted ${originalFile.name} to PDF.`,
-                    'success',
-                    () => resetState()
-                );
-            } else {
-                console.log('[CSV2PDF] Converting multiple files:', state.files.length);
-                showLoader('Preparing conversion...');
-                const JSZip = (await import('jszip')).default;
-                const zip = new JSZip();
-
-                for (let i = 0; i < state.files.length; i++) {
-                    const file = state.files[i];
-                    console.log(`[CSV2PDF] Converting file ${i + 1}/${state.files.length}:`, file.name);
-
-                    const pdfBlob = await convertCsvToPdf(file, {
-                        onProgress: (percent, message) => {
-                            const overallPercent = ((i / state.files.length) * 100) + (percent / state.files.length);
-                            showLoader(`Converting ${i + 1}/${state.files.length}: ${file.name}...`, overallPercent);
-                        }
-                    });
-
-                    console.log(`[CSV2PDF] Converted ${file.name}, PDF size:`, pdfBlob.size);
-
-                    const baseName = file.name.replace(/\.csv$/i, '');
-                    const pdfBuffer = await pdfBlob.arrayBuffer();
-                    zip.file(`${baseName}.pdf`, pdfBuffer);
-                }
-
-                console.log('[CSV2PDF] Generating ZIP file...');
-                showLoader('Creating ZIP archive...');
-                const zipBlob = await zip.generateAsync({ type: 'blob' });
-                console.log('[CSV2PDF] ZIP size:', zipBlob.size);
-
-                downloadFile(zipBlob, 'csv-converted.zip');
-
-                hideLoader();
-
-                showAlert(
-                    'Conversion Complete',
-                    `Successfully converted ${state.files.length} CSV file(s) to PDF.`,
-                    'success',
-                    () => resetState()
-                );
-            }
-        } catch (e: any) {
-            console.error('[CSV2PDF] ERROR:', e);
-            console.error('[CSV2PDF] Error stack:', e.stack);
-            hideLoader();
-            showAlert(
-                'Error',
-                `An error occurred during conversion. Error: ${e.message}`
-            );
-        }
-    };
-
-    const handleFileSelect = (files: FileList | null) => {
-        if (files && files.length > 0) {
-            state.files = [...state.files, ...Array.from(files)];
+          const removeBtn = document.createElement('button');
+          removeBtn.className =
+            'ml-4 text-red-400 hover:text-red-300 flex-shrink-0';
+          removeBtn.innerHTML = '<i data-lucide="trash-2" class="w-4 h-4"></i>';
+          removeBtn.onclick = () => {
+            state.files = state.files.filter((_, i) => i !== index);
            updateUI();
+          };
+
+          fileDiv.append(infoContainer, removeBtn);
+          fileDisplayArea.appendChild(fileDiv);
        }
-    };

-    if (fileInput && dropZone) {
-        fileInput.addEventListener('change', (e) => {
-            handleFileSelect((e.target as HTMLInputElement).files);
-        });
-
-        dropZone.addEventListener('dragover', (e) => {
-            e.preventDefault();
-            dropZone.classList.add('bg-gray-700');
-        });
-
-        dropZone.addEventListener('dragleave', (e) => {
-            e.preventDefault();
-            dropZone.classList.remove('bg-gray-700');
-        });
-
-        dropZone.addEventListener('drop', (e) => {
-            e.preventDefault();
-            dropZone.classList.remove('bg-gray-700');
-            const files = e.dataTransfer?.files;
-            if (files && files.length > 0) {
-                const csvFiles = Array.from(files).filter(f => f.name.toLowerCase().endsWith('.csv') || f.type === 'text/csv');
-                if (csvFiles.length > 0) {
-                    const dataTransfer = new DataTransfer();
-                    csvFiles.forEach(f => dataTransfer.items.add(f));
-                    handleFileSelect(dataTransfer.files);
-                }
-            }
-        });
-
-        // Clear value on click to allow re-selecting the same file
-        fileInput.addEventListener('click', () => {
-            fileInput.value = '';
-        });
-    }
-
-    if (addMoreBtn) {
-        addMoreBtn.addEventListener('click', () => {
-            fileInput.click();
-        });
-    }
-
-    if (clearFilesBtn) {
-        clearFilesBtn.addEventListener('click', () => {
-            resetState();
-        });
-    }
-
-    if (processBtn) {
-        processBtn.addEventListener('click', convertToPdf);
+        createIcons({ icons });
+      }
+      if (fileControls) fileControls.classList.remove('hidden');
+      convertOptions.classList.remove('hidden');
+    } else {
+      if (fileDisplayArea) fileDisplayArea.innerHTML = '';
+      if (fileControls) fileControls.classList.add('hidden');
+      convertOptions.classList.add('hidden');
    }
+  };

+  const resetState = () => {
+    state.files = [];
+    state.pdfDoc = null;
    updateUI();
+  };
+
+  const convertToPdf = async () => {
+    try {
+      console.log('[CSV2PDF] Starting conversion...');
+      console.log('[CSV2PDF] Number of files:', state.files.length);
+
+      if (state.files.length === 0) {
+        showAlert('No Files', 'Please select at least one CSV file.');
+        hideLoader();
+        return;
+      }
+
+      const { convertCsvToPdf } = await import('../utils/csv-to-pdf.js');
+
+      if (state.files.length === 1) {
+        const originalFile = state.files[0];
+        console.log(
+          '[CSV2PDF] Converting single file:',
+          originalFile.name,
+          'Size:',
+          originalFile.size,
+          'bytes'
+        );
+
+        const pdfBlob = await convertCsvToPdf(originalFile, {
+          onProgress: (percent, message) => {
+            console.log(`[CSV2PDF] Progress: ${percent}% - ${message}`);
+            showLoader(message, percent);
+          },
+        });
+
+        console.log(
+          '[CSV2PDF] Conversion complete! PDF size:',
+          pdfBlob.size,
+          'bytes'
+        );
+
+        const fileName = originalFile.name.replace(/\.csv$/i, '') + '.pdf';
+        downloadFile(pdfBlob, fileName);
+        console.log('[CSV2PDF] File downloaded:', fileName);
+
+        hideLoader();
+
+        showAlert(
+          'Conversion Complete',
+          `Successfully converted ${originalFile.name} to PDF.`,
+          'success',
+          () => resetState()
+        );
+      } else {
+        console.log('[CSV2PDF] Converting multiple files:', state.files.length);
+        showLoader('Preparing conversion...');
+        const JSZip = (await import('jszip')).default;
+        const zip = new JSZip();
+
+        for (let i = 0; i < state.files.length; i++) {
+          const file = state.files[i];
+          console.log(
+            `[CSV2PDF] Converting file ${i + 1}/${state.files.length}:`,
+            file.name
+          );
+
+          const pdfBlob = await convertCsvToPdf(file, {
+            onProgress: (percent) => {
+              const overallPercent =
+                (i / state.files.length) * 100 + percent / state.files.length;
+              showLoader(
+                `Converting ${i + 1}/${state.files.length}: ${file.name}...`,
+                overallPercent
+              );
+            },
+          });
+
+          console.log(
+            `[CSV2PDF] Converted ${file.name}, PDF size:`,
+            pdfBlob.size
+          );
+
+          const baseName = file.name.replace(/\.csv$/i, '');
+          const pdfBuffer = await pdfBlob.arrayBuffer();
+          zip.file(`${baseName}.pdf`, pdfBuffer);
+        }
+
+        console.log('[CSV2PDF] Generating ZIP file...');
+        showLoader('Creating ZIP archive...');
+        const zipBlob = await zip.generateAsync({ type: 'blob' });
+        console.log('[CSV2PDF] ZIP size:', zipBlob.size);
+
+        downloadFile(zipBlob, 'csv-converted.zip');
+
+        hideLoader();
+
+        showAlert(
+          'Conversion Complete',
+          `Successfully converted ${state.files.length} CSV file(s) to PDF.`,
+          'success',
+          () => resetState()
+        );
+      }
+    } catch (e: unknown) {
+      console.error('[CSV2PDF] ERROR:', e);
+      console.error(
+        '[CSV2PDF] Error stack:',
+        e instanceof Error ? e.stack : ''
+      );
+      hideLoader();
+      showAlert(
+        'Error',
+        `An error occurred during conversion. Error: ${e instanceof Error ? e.message : String(e)}`
+      );
+    }
+  };
+
+  const handleFileSelect = (files: FileList | null) => {
+    if (files && files.length > 0) {
+      state.files = [...state.files, ...Array.from(files)];
+      updateUI();
+    }
+  };
+
+  if (fileInput && dropZone) {
+    fileInput.addEventListener('change', (e) => {
+      handleFileSelect((e.target as HTMLInputElement).files);
+    });
+
+    dropZone.addEventListener('dragover', (e) => {
+      e.preventDefault();
+      dropZone.classList.add('bg-gray-700');
+    });
+
+    dropZone.addEventListener('dragleave', (e) => {
+      e.preventDefault();
+      dropZone.classList.remove('bg-gray-700');
+    });
+
+    dropZone.addEventListener('drop', (e) => {
+      e.preventDefault();
+      dropZone.classList.remove('bg-gray-700');
+      const files = e.dataTransfer?.files;
+      if (files && files.length > 0) {
+        const csvFiles = Array.from(files).filter(
+          (f) => f.name.toLowerCase().endsWith('.csv') || f.type === 'text/csv'
+        );
+        if (csvFiles.length > 0) {
+          const dataTransfer = new DataTransfer();
+          csvFiles.forEach((f) => dataTransfer.items.add(f));
+          handleFileSelect(dataTransfer.files);
+        }
+      }
+    });
+
+    // Clear value on click to allow re-selecting the same file
+    fileInput.addEventListener('click', () => {
+      fileInput.value = '';
+    });
+  }
+
+  if (addMoreBtn) {
+    addMoreBtn.addEventListener('click', () => {
+      fileInput.click();
+    });
+  }
+
+  if (clearFilesBtn) {
+    clearFilesBtn.addEventListener('click', () => {
+      resetState();
+    });
+  }
+
+  if (processBtn) {
+    processBtn.addEventListener('click', convertToPdf);
+  }
+
+  updateUI();
 });
--- a/src/js/logic/decrypt-pdf-page.ts
+++ b/src/js/logic/decrypt-pdf-page.ts
@@ -170,7 +170,7 @@ async function decryptPdf() {

          zip.file(`unlocked-${file.name}`, decryptedBytes, { binary: true });
          successCount++;
-        } catch (fileError: any) {
+        } catch (fileError: unknown) {
          errorCount++;
          console.error(`Failed to decrypt ${file.name}:`, fileError);
        }
@@ -194,15 +194,16 @@ async function decryptPdf() {
        resetState();
      });
    }
-  } catch (error: any) {
+  } catch (error: unknown) {
    console.error('Error during PDF decryption:', error);

-    if (error.message === 'INVALID_PASSWORD') {
+    const errorMessage = error instanceof Error ? error.message : '';
+    if (errorMessage === 'INVALID_PASSWORD') {
      showAlert(
        'Incorrect Password',
        'The password you entered is incorrect. Please try again.'
      );
-    } else if (error.message?.includes('password')) {
+    } else if (errorMessage.includes('password')) {
      showAlert(
        'Password Error',
        'Unable to decrypt the PDF with the provided password.'
@@ -210,7 +211,7 @@ async function decryptPdf() {
    } else {
      showAlert(
        'Decryption Failed',
-        `An error occurred: ${error.message || 'The password you entered is wrong or the file is corrupted.'}`
+        `An error occurred: ${errorMessage || 'The password you entered is wrong or the file is corrupted.'}`
      );
    }
  } finally {
--- a/src/js/logic/delete-pages-page.ts
+++ b/src/js/logic/delete-pages-page.ts
@@ -164,7 +164,7 @@ async function renderThumbnails() {
    canvas.width = viewport.width;
    canvas.height = viewport.height;
    const ctx = canvas.getContext('2d');
-    await page.render({ canvasContext: ctx, viewport }).promise;
+    await page.render({ canvas: null, canvasContext: ctx, viewport }).promise;

    const wrapper = document.createElement('div');
    wrapper.className = 'relative cursor-pointer group';
--- a/src/js/logic/deskew-pdf-page.ts
+++ b/src/js/logic/deskew-pdf-page.ts
@@ -1,9 +1,10 @@
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
-import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import { loadPyMuPDF } from '../utils/pymupdf-loader.js';
+import type { PyMuPDFInstance } from '@/types';
 import { batchDecryptIfNeeded } from '../utils/password-prompt.js';
 import { createIcons, icons } from 'lucide';
 import { downloadFile } from '../utils/helpers';
+import { isWasmAvailable } from '../config/wasm-cdn-config.js';
+import { showWasmRequiredDialog } from '../utils/wasm-provider.js';

 interface DeskewResult {
  totalPages: number;
@@ -13,11 +14,11 @@ interface DeskewResult {
 }

 let selectedFiles: File[] = [];
-let pymupdf: any = null;
+let pymupdf: PyMuPDFInstance | null = null;

-async function initPyMuPDF(): Promise<any> {
+async function initPyMuPDF(): Promise<PyMuPDFInstance> {
  if (!pymupdf) {
-    pymupdf = await loadPyMuPDF();
+    pymupdf = (await loadPyMuPDF()) as PyMuPDFInstance;
  }
  return pymupdf;
 }
--- a/src/js/logic/digital-sign-pdf-page.ts
+++ b/src/js/logic/digital-sign-pdf-page.ts
@@ -400,7 +400,7 @@ async function handleCertFile(file: File): Promise<void> {
          certStatus.className = 'text-xs text-green-400';
        }
      }
-    } catch (error) {
+    } catch {
      const certStatus = getElement<HTMLDivElement>('cert-status');
      if (certStatus) {
        certStatus.textContent = 'Failed to parse PEM file';
--- a/src/js/logic/duplicate-organize.ts
+++ b/src/js/logic/duplicate-organize.ts
@@ -16,7 +16,9 @@ pdfjsLib.GlobalWorkerOptions.workerSrc = new URL(
  import.meta.url
 ).toString();

-const duplicateOrganizeState = {
+const duplicateOrganizeState: {
+  sortableInstances: { pageGrid?: Sortable };
+} = {
  sortableInstances: {},
 };

@@ -24,13 +26,10 @@ function initializePageGridSortable() {
  const grid = document.getElementById('page-grid');
  if (!grid) return;

-  // @ts-expect-error TS(2339) FIXME: Property 'pageGrid' does not exist on type '{}'.
  if (duplicateOrganizeState.sortableInstances.pageGrid) {
-    // @ts-expect-error TS(2339) FIXME: Property 'pageGrid' does not exist on type '{}'.
    duplicateOrganizeState.sortableInstances.pageGrid.destroy();
  }

-  // @ts-expect-error TS(2339) FIXME: Property 'pageGrid' does not exist on type '{}'.
  duplicateOrganizeState.sortableInstances.pageGrid = Sortable.create(grid, {
    animation: 150,
    ghostClass: 'sortable-ghost',
@@ -38,10 +37,10 @@ function initializePageGridSortable() {
    dragClass: 'sortable-drag',
    filter: '.duplicate-btn, .delete-btn',
    preventOnFilter: true,
-    onStart: function (evt: any) {
+    onStart: function (evt: Sortable.SortableEvent) {
      evt.item.style.opacity = '0.5';
    },
-    onEnd: function (evt: any) {
+    onEnd: function (evt: Sortable.SortableEvent) {
      evt.item.style.opacity = '1';
    },
  });
@@ -51,7 +50,7 @@ function initializePageGridSortable() {
 * Attaches event listeners for duplicate and delete to a page thumbnail element.
 * @param {HTMLElement} element The thumbnail element to attach listeners to.
 */
-function attachEventListeners(element: any) {
+function attachEventListeners(element: HTMLElement) {
  // Re-number all visible page labels
  const renumberPages = () => {
    const grid = document.getElementById('page-grid');
@@ -65,16 +64,16 @@ function attachEventListeners(element: any) {
  // Duplicate button listener
  element
    .querySelector('.duplicate-btn')
-    .addEventListener('click', (e: any) => {
+    .addEventListener('click', (e: Event) => {
      e.stopPropagation();
-      const clone = element.cloneNode(true);
+      const clone = element.cloneNode(true) as HTMLElement;
      element.after(clone);
      attachEventListeners(clone);
      renumberPages();
      initializePageGridSortable();
    });

-  element.querySelector('.delete-btn').addEventListener('click', (e: any) => {
+  element.querySelector('.delete-btn').addEventListener('click', (e: Event) => {
    e.stopPropagation();
    if (document.getElementById('page-grid').children.length > 1) {
      element.remove();
@@ -218,7 +217,7 @@ export async function processAndSave() {
    }

    const copiedPages = await newPdfDoc.copyPages(state.pdfDoc, finalIndices);
-    copiedPages.forEach((page: any) => newPdfDoc.addPage(page));
+    copiedPages.forEach((page) => newPdfDoc.addPage(page));

    const newPdfBytes = await newPdfDoc.save();
    downloadFile(
--- a/src/js/logic/edit-attachments-page.ts
+++ b/src/js/logic/edit-attachments-page.ts
@@ -44,7 +44,11 @@ worker.onmessage = function (e) {
  const data = e.data;

  if (data.status === 'success' && data.attachments !== undefined) {
-    pageState.allAttachments = data.attachments.map(function (att: any) {
+    pageState.allAttachments = data.attachments.map(function (att: {
+      data: ArrayBuffer;
+      filename: string;
+      description: string;
+    }) {
      return {
        ...att,
        data: new Uint8Array(att.data),
--- a/src/js/logic/edit-pdf-page.ts
+++ b/src/js/logic/edit-pdf-page.ts
@@ -11,8 +11,11 @@ const embedPdfWasmUrl = new URL(
  import.meta.url
 ).href;

-let viewerInstance: any = null;
-let docManagerPlugin: any = null;
+import type { EmbedPdfContainer } from 'embedpdf-snippet';
+import type { DocManagerPlugin } from '@/types';
+
+let viewerInstance: EmbedPdfContainer | null = null;
+let docManagerPlugin: DocManagerPlugin | null = null;
 let isViewerInitialized = false;
 const fileEntryMap = new Map<string, HTMLElement>();

@@ -148,33 +151,37 @@ async function handleFiles(files: FileList) {
      });

      const registry = await viewerInstance.registry;
-      docManagerPlugin = registry.getPlugin('document-manager').provides();
+      docManagerPlugin = registry
+        .getPlugin('document-manager')
+        .provides() as unknown as DocManagerPlugin;

-      docManagerPlugin.onDocumentClosed((data: any) => {
-        const docId = data?.id || data;
+      docManagerPlugin.onDocumentClosed((data: { id?: string }) => {
+        const docId = data?.id || '';
        removeFileEntry(docId);
      });

-      docManagerPlugin.onDocumentOpened((data: any) => {
-        const docId = data?.id;
-        const docKey = data?.name;
-        if (!docId) return;
-        const pendingEntry = fileDisplayArea.querySelector(
-          `[data-pending-name="${CSS.escape(docKey)}"]`
-        ) as HTMLElement;
-        if (pendingEntry) {
-          pendingEntry.removeAttribute('data-pending-name');
-          fileEntryMap.set(docId, pendingEntry);
-          const removeBtn = pendingEntry.querySelector(
-            '[data-remove-btn]'
+      docManagerPlugin.onDocumentOpened(
+        (data: { id?: string; name?: string }) => {
+          const docId = data?.id;
+          const docKey = data?.name;
+          if (!docId) return;
+          const pendingEntry = fileDisplayArea.querySelector(
+            `[data-pending-name="${CSS.escape(docKey)}"]`
          ) as HTMLElement;
-          if (removeBtn) {
-            removeBtn.onclick = () => {
-              docManagerPlugin.closeDocument(docId);
-            };
+          if (pendingEntry) {
+            pendingEntry.removeAttribute('data-pending-name');
+            fileEntryMap.set(docId, pendingEntry);
+            const removeBtn = pendingEntry.querySelector(
+              '[data-remove-btn]'
+            ) as HTMLElement;
+            if (removeBtn) {
+              removeBtn.onclick = () => {
+                docManagerPlugin.closeDocument(docId);
+              };
+            }
          }
        }
-      });
+      );

      addFileEntries(fileDisplayArea, decryptedFiles);

--- a/src/js/logic/email-to-pdf-page.ts
+++ b/src/js/logic/email-to-pdf-page.ts
@@ -3,9 +3,7 @@ import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';
 import { parseEmailFile, renderEmailToHtml } from './email-to-pdf.js';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
-import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import { loadPyMuPDF } from '../utils/pymupdf-loader.js';

 const EXTENSIONS = ['.eml', '.msg'];
 const TOOL_NAME = 'Email';
@@ -125,7 +123,11 @@ document.addEventListener('DOMContentLoaded', () => {
          pageSize,
        });

-        const pdfBlob = await (pymupdf as any).htmlToPdf(htmlContent, {
+        const pdfBlob = await (
+          pymupdf as unknown as {
+            htmlToPdf: (html: string, options: unknown) => Promise<Blob>;
+          }
+        ).htmlToPdf(htmlContent, {
          pageSize,
          margins: { top: 50, right: 50, bottom: 50, left: 50 },
          attachments: email.attachments
@@ -166,7 +168,11 @@ document.addEventListener('DOMContentLoaded', () => {
              pageSize,
            });

-            const pdfBlob = await (pymupdf as any).htmlToPdf(htmlContent, {
+            const pdfBlob = await (
+              pymupdf as unknown as {
+                htmlToPdf: (html: string, options: unknown) => Promise<Blob>;
+              }
+            ).htmlToPdf(htmlContent, {
              pageSize,
              margins: { top: 50, right: 50, bottom: 50, left: 50 },
              attachments: email.attachments
@@ -179,7 +185,7 @@ document.addEventListener('DOMContentLoaded', () => {
            const baseName = file.name.replace(/\.[^.]+$/, '');
            const pdfBuffer = await pdfBlob.arrayBuffer();
            zip.file(`${baseName}.pdf`, pdfBuffer);
-          } catch (e: any) {
+          } catch (e: unknown) {
            console.error(`Failed to convert ${file.name}:`, e);
          }
        }
@@ -196,12 +202,12 @@ document.addEventListener('DOMContentLoaded', () => {
          () => resetState()
        );
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      console.error(`[${TOOL_NAME}2PDF] ERROR:`, e);
      hideLoader();
      showAlert(
        'Error',
-        `An error occurred during conversion. Error: ${e.message}`
+        `An error occurred during conversion. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };
--- a/src/js/logic/email-to-pdf.ts
+++ b/src/js/logic/email-to-pdf.ts
@@ -42,7 +42,14 @@ export async function parseEmlFile(file: File): Promise<ParsedEmail> {
    .filter(Boolean);

  // Helper to map parsing result to EmailAttachment
-  const mapAttachment = (att: any): EmailAttachment => {
+  interface RawAttachment {
+    content?: string | ArrayBuffer | Uint8Array;
+    filename?: string;
+    mimeType?: string;
+    contentId?: string;
+  }
+
+  const mapAttachment = (att: RawAttachment): EmailAttachment => {
    let content: Uint8Array | undefined;
    let size = 0;
    if (att.content) {
@@ -67,7 +74,9 @@ export async function parseEmlFile(file: File): Promise<ParsedEmail> {

  const attachments: EmailAttachment[] = [
    ...(email.attachments || []).map(mapAttachment),
-    ...((email as any).inline || []).map(mapAttachment),
+    ...((email as { inline?: RawAttachment[] }).inline || []).map(
+      mapAttachment
+    ),
  ];

  // Preserve original date string from headers
@@ -138,8 +147,16 @@ export async function parseMsgFile(file: File): Promise<ParsedEmail> {
    }
  }

+  interface MsgAttachment {
+    fileName?: string;
+    name?: string;
+    content?: ArrayLike<number>;
+    mimeType?: string;
+    pidContentId?: string;
+  }
+
  const attachments: EmailAttachment[] = (msgData.attachments || []).map(
-    (att: any) => ({
+    (att: MsgAttachment) => ({
      filename: att.fileName || att.name || 'unnamed',
      size: att.content?.length || 0,
      contentType: att.mimeType || 'application/octet-stream',
--- a/src/js/logic/encrypt-pdf-page.ts
+++ b/src/js/logic/encrypt-pdf-page.ts
@@ -6,7 +6,7 @@ import {
  readFileAsArrayBuffer,
 } from '../utils/helpers.js';
 import { icons, createIcons } from 'lucide';
-import { EncryptPdfState } from '@/types';
+import { EncryptPdfState, QpdfInstanceExtended } from '@/types';

 const pageState: EncryptPdfState = {
  file: null,
@@ -114,7 +114,7 @@ async function encryptPdf() {

  const inputPath = '/input.pdf';
  const outputPath = '/output.pdf';
-  let qpdf: any;
+  let qpdf: QpdfInstanceExtended;

  const loaderModal = document.getElementById('loader-modal');
  const loaderText = document.getElementById('loader-text');
@@ -154,10 +154,11 @@ async function encryptPdf() {

    try {
      qpdf.callMain(args);
-    } catch (qpdfError: any) {
+    } catch (qpdfError: unknown) {
      console.error('qpdf execution error:', qpdfError);
      throw new Error(
-        'Encryption failed: ' + (qpdfError.message || 'Unknown error'),
+        'Encryption failed: ' +
+          (qpdfError instanceof Error ? qpdfError.message : 'Unknown error'),
        { cause: qpdfError }
      );
    }
@@ -169,7 +170,9 @@ async function encryptPdf() {
      throw new Error('Encryption resulted in an empty file.');
    }

-    const blob = new Blob([outputFile], { type: 'application/pdf' });
+    const blob = new Blob([new Uint8Array(outputFile)], {
+      type: 'application/pdf',
+    });
    downloadFile(blob, `encrypted-${pageState.file.name}`);

    if (loaderModal) loaderModal.classList.add('hidden');
@@ -183,12 +186,12 @@ async function encryptPdf() {
    showAlert('Success', successMessage, 'success', () => {
      resetState();
    });
-  } catch (error: any) {
+  } catch (error: unknown) {
    console.error('Error during PDF encryption:', error);
    if (loaderModal) loaderModal.classList.add('hidden');
    showAlert(
      'Encryption Failed',
-      `An error occurred: ${error.message || 'The PDF might be corrupted.'}`
+      `An error occurred: ${error instanceof Error ? error.message : 'The PDF might be corrupted.'}`
    );
  } finally {
    try {
--- a/src/js/logic/epub-to-pdf-page.ts
+++ b/src/js/logic/epub-to-pdf-page.ts
@@ -2,9 +2,7 @@ import { showLoader, hideLoader, showAlert } from '../ui.js';
 import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
-import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import { loadPyMuPDF } from '../utils/pymupdf-loader.js';

 const FILETYPE = 'epub';
 const EXTENSIONS = ['.epub'];
@@ -145,12 +143,12 @@ document.addEventListener('DOMContentLoaded', () => {
          () => resetState()
        );
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      console.error(`[${TOOL_NAME}2PDF] ERROR:`, e);
      hideLoader();
      showAlert(
        'Error',
-        `An error occurred during conversion. Error: ${e.message}`
+        `An error occurred during conversion. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };
--- a/src/js/logic/excel-to-pdf-page.ts
+++ b/src/js/logic/excel-to-pdf-page.ts
@@ -1,216 +1,226 @@
 import { showLoader, hideLoader, showAlert } from '../ui.js';
-import {
-    downloadFile,
-    readFileAsArrayBuffer,
-    formatBytes,
-} from '../utils/helpers.js';
+import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';
-import { getLibreOfficeConverter, type LoadProgress } from '../utils/libreoffice-loader.js';
+import {
+  getLibreOfficeConverter,
+  type LoadProgress,
+} from '../utils/libreoffice-loader.js';

 document.addEventListener('DOMContentLoaded', () => {
-    state.files = [];
+  state.files = [];

-    const fileInput = document.getElementById('file-input') as HTMLInputElement;
-    const dropZone = document.getElementById('drop-zone');
-    const convertOptions = document.getElementById('convert-options');
-    const fileDisplayArea = document.getElementById('file-display-area');
-    const fileControls = document.getElementById('file-controls');
-    const addMoreBtn = document.getElementById('add-more-btn');
-    const clearFilesBtn = document.getElementById('clear-files-btn');
-    const backBtn = document.getElementById('back-to-tools');
-    const processBtn = document.getElementById('process-btn');
+  const fileInput = document.getElementById('file-input') as HTMLInputElement;
+  const dropZone = document.getElementById('drop-zone');
+  const convertOptions = document.getElementById('convert-options');
+  const fileDisplayArea = document.getElementById('file-display-area');
+  const fileControls = document.getElementById('file-controls');
+  const addMoreBtn = document.getElementById('add-more-btn');
+  const clearFilesBtn = document.getElementById('clear-files-btn');
+  const backBtn = document.getElementById('back-to-tools');
+  const processBtn = document.getElementById('process-btn');

-    if (backBtn) {
-        backBtn.addEventListener('click', () => {
-            window.location.href = import.meta.env.BASE_URL;
-        });
-    }
+  if (backBtn) {
+    backBtn.addEventListener('click', () => {
+      window.location.href = import.meta.env.BASE_URL;
+    });
+  }

-    const updateUI = async () => {
-        if (!convertOptions) return;
+  const updateUI = async () => {
+    if (!convertOptions) return;

-        if (state.files.length > 0) {
-            if (fileDisplayArea) {
-                fileDisplayArea.innerHTML = '';
+    if (state.files.length > 0) {
+      if (fileDisplayArea) {
+        fileDisplayArea.innerHTML = '';

-                for (let index = 0; index < state.files.length; index++) {
-                    const file = state.files[index];
-                    const fileDiv = document.createElement('div');
-                    fileDiv.className = 'flex items-center justify-between bg-gray-700 p-3 rounded-lg text-sm';
+        for (let index = 0; index < state.files.length; index++) {
+          const file = state.files[index];
+          const fileDiv = document.createElement('div');
+          fileDiv.className =
+            'flex items-center justify-between bg-gray-700 p-3 rounded-lg text-sm';

-                    const infoContainer = document.createElement('div');
-                    infoContainer.className = 'flex flex-col overflow-hidden';
+          const infoContainer = document.createElement('div');
+          infoContainer.className = 'flex flex-col overflow-hidden';

-                    const nameSpan = document.createElement('div');
-                    nameSpan.className = 'truncate font-medium text-gray-200 text-sm mb-1';
-                    nameSpan.textContent = file.name;
+          const nameSpan = document.createElement('div');
+          nameSpan.className =
+            'truncate font-medium text-gray-200 text-sm mb-1';
+          nameSpan.textContent = file.name;

-                    const metaSpan = document.createElement('div');
-                    metaSpan.className = 'text-xs text-gray-400';
-                    metaSpan.textContent = formatBytes(file.size);
+          const metaSpan = document.createElement('div');
+          metaSpan.className = 'text-xs text-gray-400';
+          metaSpan.textContent = formatBytes(file.size);

-                    infoContainer.append(nameSpan, metaSpan);
+          infoContainer.append(nameSpan, metaSpan);

-                    const removeBtn = document.createElement('button');
-                    removeBtn.className = 'ml-4 text-red-400 hover:text-red-300 flex-shrink-0';
-                    removeBtn.innerHTML = '<i data-lucide="trash-2" class="w-4 h-4"></i>';
-                    removeBtn.onclick = () => {
-                        state.files = state.files.filter((_, i) => i !== index);
-                        updateUI();
-                    };
-
-                    fileDiv.append(infoContainer, removeBtn);
-                    fileDisplayArea.appendChild(fileDiv);
-                }
-
-                createIcons({ icons });
-            }
-            if (fileControls) fileControls.classList.remove('hidden');
-            convertOptions.classList.remove('hidden');
-        } else {
-            if (fileDisplayArea) fileDisplayArea.innerHTML = '';
-            if (fileControls) fileControls.classList.add('hidden');
-            convertOptions.classList.add('hidden');
-        }
-    };
-
-    const resetState = () => {
-        state.files = [];
-        state.pdfDoc = null;
-        updateUI();
-    };
-
-    const convertToPdf = async () => {
-        try {
-            if (state.files.length === 0) {
-                showAlert('No Files', 'Please select at least one Excel file.');
-                hideLoader();
-                return;
-            }
-
-            const converter = getLibreOfficeConverter();
-
-            // Initialize LibreOffice if not already done
-            await converter.initialize((progress: LoadProgress) => {
-                showLoader(progress.message, progress.percent);
-            });
-
-            if (state.files.length === 1) {
-                const originalFile = state.files[0];
-
-                showLoader('Processing...');
-
-                const pdfBlob = await converter.convertToPdf(originalFile);
-
-                const fileName = originalFile.name.replace(/\.(xls|xlsx|ods|csv)$/i, '') + '.pdf';
-
-                downloadFile(pdfBlob, fileName);
-
-                hideLoader();
-
-                showAlert(
-                    'Conversion Complete',
-                    `Successfully converted ${originalFile.name} to PDF.`,
-                    'success',
-                    () => resetState()
-                );
-            } else {
-                showLoader('Processing...');
-                const JSZip = (await import('jszip')).default;
-                const zip = new JSZip();
-
-                for (let i = 0; i < state.files.length; i++) {
-                    const file = state.files[i];
-                    showLoader(`Converting ${i + 1}/${state.files.length}: ${file.name}...`);
-
-                    const pdfBlob = await converter.convertToPdf(file);
-
-                    const baseName = file.name.replace(/\.(xls|xlsx|ods|csv)$/i, '');
-                    const pdfBuffer = await pdfBlob.arrayBuffer();
-                    zip.file(`${baseName}.pdf`, pdfBuffer);
-                }
-
-                const zipBlob = await zip.generateAsync({ type: 'blob' });
-
-                downloadFile(zipBlob, 'excel-converted.zip');
-
-                hideLoader();
-
-                showAlert(
-                    'Conversion Complete',
-                    `Successfully converted ${state.files.length} Excel file(s) to PDF.`,
-                    'success',
-                    () => resetState()
-                );
-            }
-        } catch (e: any) {
-            hideLoader();
-            showAlert(
-                'Error',
-                `An error occurred during conversion. Error: ${e.message}`
-            );
-        }
-    };
-
-    const handleFileSelect = (files: FileList | null) => {
-        if (files && files.length > 0) {
-            state.files = [...state.files, ...Array.from(files)];
+          const removeBtn = document.createElement('button');
+          removeBtn.className =
+            'ml-4 text-red-400 hover:text-red-300 flex-shrink-0';
+          removeBtn.innerHTML = '<i data-lucide="trash-2" class="w-4 h-4"></i>';
+          removeBtn.onclick = () => {
+            state.files = state.files.filter((_, i) => i !== index);
            updateUI();
+          };
+
+          fileDiv.append(infoContainer, removeBtn);
+          fileDisplayArea.appendChild(fileDiv);
        }
-    };

-    if (fileInput && dropZone) {
-        fileInput.addEventListener('change', (e) => {
-            handleFileSelect((e.target as HTMLInputElement).files);
-        });
-
-        dropZone.addEventListener('dragover', (e) => {
-            e.preventDefault();
-            dropZone.classList.add('bg-gray-700');
-        });
-
-        dropZone.addEventListener('dragleave', (e) => {
-            e.preventDefault();
-            dropZone.classList.remove('bg-gray-700');
-        });
-
-        dropZone.addEventListener('drop', (e) => {
-            e.preventDefault();
-            dropZone.classList.remove('bg-gray-700');
-            const files = e.dataTransfer?.files;
-            if (files && files.length > 0) {
-                const excelFiles = Array.from(files).filter(f => {
-                    const name = f.name.toLowerCase();
-                    return name.endsWith('.xls') || name.endsWith('.xlsx') || name.endsWith('.ods') || name.endsWith('.csv');
-                });
-                if (excelFiles.length > 0) {
-                    const dataTransfer = new DataTransfer();
-                    excelFiles.forEach(f => dataTransfer.items.add(f));
-                    handleFileSelect(dataTransfer.files);
-                }
-            }
-        });
-
-        // Clear value on click to allow re-selecting the same file
-        fileInput.addEventListener('click', () => {
-            fileInput.value = '';
-        });
+        createIcons({ icons });
+      }
+      if (fileControls) fileControls.classList.remove('hidden');
+      convertOptions.classList.remove('hidden');
+    } else {
+      if (fileDisplayArea) fileDisplayArea.innerHTML = '';
+      if (fileControls) fileControls.classList.add('hidden');
+      convertOptions.classList.add('hidden');
    }
+  };

-    if (addMoreBtn) {
-        addMoreBtn.addEventListener('click', () => {
-            fileInput.click();
+  const resetState = () => {
+    state.files = [];
+    state.pdfDoc = null;
+    updateUI();
+  };
+
+  const convertToPdf = async () => {
+    try {
+      if (state.files.length === 0) {
+        showAlert('No Files', 'Please select at least one Excel file.');
+        hideLoader();
+        return;
+      }
+
+      const converter = getLibreOfficeConverter();
+
+      // Initialize LibreOffice if not already done
+      await converter.initialize((progress: LoadProgress) => {
+        showLoader(progress.message, progress.percent);
+      });
+
+      if (state.files.length === 1) {
+        const originalFile = state.files[0];
+
+        showLoader('Processing...');
+
+        const pdfBlob = await converter.convertToPdf(originalFile);
+
+        const fileName =
+          originalFile.name.replace(/\.(xls|xlsx|ods|csv)$/i, '') + '.pdf';
+
+        downloadFile(pdfBlob, fileName);
+
+        hideLoader();
+
+        showAlert(
+          'Conversion Complete',
+          `Successfully converted ${originalFile.name} to PDF.`,
+          'success',
+          () => resetState()
+        );
+      } else {
+        showLoader('Processing...');
+        const JSZip = (await import('jszip')).default;
+        const zip = new JSZip();
+
+        for (let i = 0; i < state.files.length; i++) {
+          const file = state.files[i];
+          showLoader(
+            `Converting ${i + 1}/${state.files.length}: ${file.name}...`
+          );
+
+          const pdfBlob = await converter.convertToPdf(file);
+
+          const baseName = file.name.replace(/\.(xls|xlsx|ods|csv)$/i, '');
+          const pdfBuffer = await pdfBlob.arrayBuffer();
+          zip.file(`${baseName}.pdf`, pdfBuffer);
+        }
+
+        const zipBlob = await zip.generateAsync({ type: 'blob' });
+
+        downloadFile(zipBlob, 'excel-converted.zip');
+
+        hideLoader();
+
+        showAlert(
+          'Conversion Complete',
+          `Successfully converted ${state.files.length} Excel file(s) to PDF.`,
+          'success',
+          () => resetState()
+        );
+      }
+    } catch (e: unknown) {
+      hideLoader();
+      showAlert(
+        'Error',
+        `An error occurred during conversion. Error: ${e instanceof Error ? e.message : String(e)}`
+      );
+    }
+  };
+
+  const handleFileSelect = (files: FileList | null) => {
+    if (files && files.length > 0) {
+      state.files = [...state.files, ...Array.from(files)];
+      updateUI();
+    }
+  };
+
+  if (fileInput && dropZone) {
+    fileInput.addEventListener('change', (e) => {
+      handleFileSelect((e.target as HTMLInputElement).files);
+    });
+
+    dropZone.addEventListener('dragover', (e) => {
+      e.preventDefault();
+      dropZone.classList.add('bg-gray-700');
+    });
+
+    dropZone.addEventListener('dragleave', (e) => {
+      e.preventDefault();
+      dropZone.classList.remove('bg-gray-700');
+    });
+
+    dropZone.addEventListener('drop', (e) => {
+      e.preventDefault();
+      dropZone.classList.remove('bg-gray-700');
+      const files = e.dataTransfer?.files;
+      if (files && files.length > 0) {
+        const excelFiles = Array.from(files).filter((f) => {
+          const name = f.name.toLowerCase();
+          return (
+            name.endsWith('.xls') ||
+            name.endsWith('.xlsx') ||
+            name.endsWith('.ods') ||
+            name.endsWith('.csv')
+          );
        });
-    }
+        if (excelFiles.length > 0) {
+          const dataTransfer = new DataTransfer();
+          excelFiles.forEach((f) => dataTransfer.items.add(f));
+          handleFileSelect(dataTransfer.files);
+        }
+      }
+    });

-    if (clearFilesBtn) {
-        clearFilesBtn.addEventListener('click', () => {
-            resetState();
-        });
-    }
+    // Clear value on click to allow re-selecting the same file
+    fileInput.addEventListener('click', () => {
+      fileInput.value = '';
+    });
+  }

-    if (processBtn) {
-        processBtn.addEventListener('click', convertToPdf);
-    }
+  if (addMoreBtn) {
+    addMoreBtn.addEventListener('click', () => {
+      fileInput.click();
+    });
+  }
+
+  if (clearFilesBtn) {
+    clearFilesBtn.addEventListener('click', () => {
+      resetState();
+    });
+  }
+
+  if (processBtn) {
+    processBtn.addEventListener('click', convertToPdf);
+  }
 });
--- a/src/js/logic/extract-images-page.ts
+++ b/src/js/logic/extract-images-page.ts
@@ -8,9 +8,7 @@ import {
 } from '../utils/helpers.js';
 import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
-import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import { loadPyMuPDF } from '../utils/pymupdf-loader.js';
 import { batchDecryptIfNeeded } from '../utils/password-prompt.js';

 interface ExtractedImage {
@@ -88,7 +86,7 @@ document.addEventListener('DOMContentLoaded', () => {
          const arrayBuffer = await readFileAsArrayBuffer(file);
          const pdfDoc = await getPDFDocument({ data: arrayBuffer }).promise;
          metaSpan.textContent = `${formatBytes(file.size)} • ${pdfDoc.numPages} pages`;
-        } catch (error) {
+        } catch {
          metaSpan.textContent = `${formatBytes(file.size)} • Could not load page count`;
        }
      }
@@ -118,7 +116,7 @@ document.addEventListener('DOMContentLoaded', () => {
    if (!imagesGrid || !imagesContainer) return;
    imagesGrid.innerHTML = '';

-    extractedImages.forEach((img, index) => {
+    extractedImages.forEach((img) => {
      const blob = new Blob([new Uint8Array(img.data)]);
      const url = URL.createObjectURL(blob);

@@ -212,11 +210,11 @@ document.addEventListener('DOMContentLoaded', () => {
          'success'
        );
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      hideLoader();
      showAlert(
        'Error',
-        `An error occurred during extraction. Error: ${e.message}`
+        `An error occurred during extraction. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };
--- a/src/js/logic/extract-pages-page.ts
+++ b/src/js/logic/extract-pages-page.ts
@@ -12,7 +12,7 @@ import { loadPdfDocument } from '../utils/load-pdf-document.js';

 interface ExtractState {
  file: File | null;
-  pdfDoc: any;
+  pdfDoc: PDFDocument | null;
  totalPages: number;
 }

--- a/src/js/logic/extract-tables-page.ts
+++ b/src/js/logic/extract-tables-page.ts
@@ -2,9 +2,7 @@ import { showLoader, hideLoader, showAlert } from '../ui.js';
 import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { createIcons, icons } from 'lucide';
 import JSZip from 'jszip';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
-import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import { loadPyMuPDF } from '../utils/pymupdf-loader.js';
 import { loadPdfWithPasswordPrompt } from '../utils/password-prompt.js';
 let file: File | null = null;

--- a/src/js/logic/fb2-to-pdf-page.ts
+++ b/src/js/logic/fb2-to-pdf-page.ts
@@ -2,9 +2,7 @@ import { showLoader, hideLoader, showAlert } from '../ui.js';
 import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
-import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import { loadPyMuPDF } from '../utils/pymupdf-loader.js';

 const FILETYPE = 'fb2';
 const EXTENSIONS = ['.fb2'];
@@ -141,12 +139,12 @@ document.addEventListener('DOMContentLoaded', () => {
          () => resetState()
        );
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      console.error(`[${TOOL_NAME}2PDF] ERROR:`, e);
      hideLoader();
      showAlert(
        'Error',
-        `An error occurred during conversion. Error: ${e.message}`
+        `An error occurred during conversion. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };
--- a/src/js/logic/form-creator.ts
+++ b/src/js/logic/form-creator.ts
@@ -28,7 +28,7 @@ type PdfViewerWindow = Window & {
 };

 import { initializeGlobalShortcuts } from '../utils/shortcuts-init.js';
-import { downloadFile, hexToRgb, getPDFDocument } from '../utils/helpers.js';
+import { downloadFile, hexToRgb } from '../utils/helpers.js';
 import { loadPdfWithPasswordPrompt } from '../utils/password-prompt.js';
 import { createIcons, icons } from 'lucide';
 import * as pdfjsLib from 'pdfjs-dist';
@@ -319,15 +319,15 @@ toolItems.forEach((item) => {
  let touchStartY = 0;
  let isTouchDragging = false;

-  item.addEventListener('touchstart', (e) => {
+  item.addEventListener('touchstart', (e: TouchEvent) => {
    const touch = e.touches[0];
    touchStartX = touch.clientX;
    touchStartY = touch.clientY;
    isTouchDragging = false;
  });

-  item.addEventListener('touchmove', (e) => {
-    e.preventDefault(); // Prevent scrolling while dragging
+  item.addEventListener('touchmove', (e: TouchEvent) => {
+    e.preventDefault();
    const touch = e.touches[0];
    const moveX = Math.abs(touch.clientX - touchStartX);
    const moveY = Math.abs(touch.clientY - touchStartY);
@@ -338,7 +338,7 @@ toolItems.forEach((item) => {
    }
  });

-  item.addEventListener('touchend', (e) => {
+  item.addEventListener('touchend', (e: TouchEvent) => {
    e.preventDefault();
    if (!isTouchDragging) {
      // It was a tap, treat as click
@@ -2131,8 +2131,7 @@ downloadBtn.addEventListener('click', async () => {
    nameCount.set(field.name, count + 1);

    if (existingFieldNames.has(field.name)) {
-      if (field.type === 'radio' && existingRadioGroups.has(field.name)) {
-      } else {
+      if (!(field.type === 'radio' && existingRadioGroups.has(field.name))) {
        conflictsWithPdf.push(field.name);
      }
    }
@@ -2337,7 +2336,7 @@ downloadBtn.addEventListener('click', async () => {
          const existingField = form.getFieldMaybe(groupName);

          if (existingField) {
-            radioGroup = existingField;
+            radioGroup = existingField as PDFRadioGroup;
            radioGroups.set(groupName, radioGroup);
            console.log(`Using existing radio group from PDF: ${groupName}`);
          } else {
@@ -2788,11 +2787,11 @@ function getPageDimensions(size: string): { width: number; height: number } {
    case 'a3':
      dimensions = PageSizes.A3;
      break;
-    case 'custom':
-      // Get custom dimensions from inputs
+    case 'custom': {
      const width = parseInt(customWidth.value) || 612;
      const height = parseInt(customHeight.value) || 792;
      return { width, height };
+    }
    default:
      dimensions = PageSizes.Letter;
  }
--- a/src/js/logic/image-to-pdf-page.ts
+++ b/src/js/logic/image-to-pdf-page.ts
@@ -1,9 +1,8 @@
 import { createIcons, icons } from 'lucide';
 import { showAlert, showLoader, hideLoader } from '../ui.js';
 import { downloadFile, formatBytes } from '../utils/helpers.js';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
-import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import { loadPyMuPDF } from '../utils/pymupdf-loader.js';
+import type { PyMuPDFInstance } from '@/types';
 import heic2any from 'heic2any';
 import {
  getSelectedQuality,
@@ -16,7 +15,7 @@ const SUPPORTED_FORMATS_DISPLAY =
  'JPG, PNG, BMP, GIF, TIFF, PNM, PGM, PBM, PPM, PAM, JXR, JPX, JP2, PSD, SVG, HEIC, WebP';

 let files: File[] = [];
-let pymupdf: any = null;
+let pymupdf: PyMuPDFInstance | null = null;

 if (document.readyState === 'loading') {
  document.addEventListener('DOMContentLoaded', initializePage);
@@ -177,9 +176,9 @@ function updateUI() {
  }
 }

-async function ensurePyMuPDF(): Promise<any> {
+async function ensurePyMuPDF(): Promise<PyMuPDFInstance> {
  if (!pymupdf) {
-    pymupdf = await loadPyMuPDF();
+    pymupdf = (await loadPyMuPDF()) as PyMuPDFInstance;
  }
  return pymupdf;
 }
@@ -274,7 +273,7 @@ async function convertToPdf() {
        const processed = await preprocessFile(file);
        const compressed = await compressImageFile(processed, quality);
        processedFiles.push(compressed);
-      } catch (error: any) {
+      } catch (error: unknown) {
        console.warn(error);
        throw error;
      }
@@ -291,11 +290,11 @@ async function convertToPdf() {
    showAlert('Success', 'PDF created successfully!', 'success', () => {
      resetState();
    });
-  } catch (e: any) {
+  } catch (e: unknown) {
    console.error('[ImageToPDF]', e);
    showAlert(
      'Conversion Error',
-      e.message || 'Failed to convert images to PDF.'
+      e instanceof Error ? e.message : 'Failed to convert images to PDF.'
    );
  } finally {
    hideLoader();
--- a/src/js/logic/index.ts
+++ b/src/js/logic/index.ts
@@ -1,81 +1,18 @@
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-import { pdfToMarkdown } from './pdf-to-markdown.js';
-import { repairPdf } from './repair-pdf.js';
-
-
 // import { mdToPdf } from './md-to-pdf.js';

-
-
-
-
-
-
 import { processAndSave } from './duplicate-organize.js';

-
-
-
-
-
-import { wordToPdf } from './word-to-pdf.js';
-
 import { setupCropperTool } from './cropper.js';

-
-
-
-
-
-
-
-
-export const toolLogic = {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+export const toolLogic: Record<
+  string,
+  | {
+      process?: (...args: unknown[]) => Promise<unknown>;
+      setup?: (...args: unknown[]) => Promise<unknown>;
+    }
+  | ((...args: unknown[]) => unknown)
+> = {
  'duplicate-organize': { process: processAndSave },

-
-
-
-
-
-
  cropper: { setup: setupCropperTool },
-
-
 };
-
--- a/src/js/logic/jpg-to-pdf-page.ts
+++ b/src/js/logic/jpg-to-pdf-page.ts
@@ -2,6 +2,7 @@ import { createIcons, icons } from 'lucide';
 import { showAlert, showLoader, hideLoader } from '../ui.js';
 import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { loadPyMuPDF } from '../utils/pymupdf-loader.js';
+import type { PyMuPDFInstance } from '@/types';
 import {
  getSelectedQuality,
  compressImageFile,
@@ -11,7 +12,7 @@ const SUPPORTED_FORMATS = '.jpg,.jpeg,.jp2,.jpx';
 const SUPPORTED_MIME_TYPES = ['image/jpeg', 'image/jpg', 'image/jp2'];

 let files: File[] = [];
-let pymupdf: any = null;
+let pymupdf: PyMuPDFInstance | null = null;

 if (document.readyState === 'loading') {
  document.addEventListener('DOMContentLoaded', initializePage);
@@ -168,9 +169,9 @@ function updateUI() {
  }
 }

-async function ensurePyMuPDF(): Promise<any> {
+async function ensurePyMuPDF(): Promise<PyMuPDFInstance> {
  if (!pymupdf) {
-    pymupdf = await loadPyMuPDF();
+    pymupdf = (await loadPyMuPDF()) as PyMuPDFInstance;
  }
  return pymupdf;
 }
@@ -200,11 +201,11 @@ async function convertToPdf() {
    showAlert('Success', 'PDF created successfully!', 'success', () => {
      resetState();
    });
-  } catch (e: any) {
+  } catch (e: unknown) {
    console.error('[JpgToPdf]', e);
    showAlert(
      'Conversion Error',
-      e.message || 'Failed to convert images to PDF.'
+      e instanceof Error ? e.message : 'Failed to convert images to PDF.'
    );
  } finally {
    hideLoader();
--- a/src/js/logic/linearize-pdf-page.ts
+++ b/src/js/logic/linearize-pdf-page.ts
@@ -8,7 +8,7 @@ import {
 import { icons, createIcons } from 'lucide';
 import JSZip from 'jszip';
 import { deduplicateFileName } from '../utils/deduplicate-filename.js';
-import { LinearizePdfState } from '@/types';
+import { LinearizePdfState, QpdfInstanceExtended } from '@/types';

 const pageState: LinearizePdfState = {
  files: [],
@@ -111,7 +111,7 @@ async function linearizePdf() {

  const zip = new JSZip();
  const usedNames = new Set<string>();
-  let qpdf: any;
+  let qpdf: QpdfInstanceExtended;
  let successCount = 0;
  let errorCount = 0;

@@ -150,7 +150,7 @@ async function linearizePdf() {
        );
        zip.file(zipEntryName, outputFile, { binary: true });
        successCount++;
-      } catch (fileError: any) {
+      } catch (fileError: unknown) {
        errorCount++;
        console.error(`Failed to linearize ${file.name}:`, fileError);
      } finally {
@@ -187,11 +187,11 @@ async function linearizePdf() {
    showAlert('Processing Complete', alertMessage, 'success', () => {
      resetState();
    });
-  } catch (error: any) {
+  } catch (error: unknown) {
    console.error('Linearization process error:', error);
    showAlert(
      'Linearization Failed',
-      `An error occurred: ${error.message || 'Unknown error'}.`
+      `An error occurred: ${error instanceof Error ? error.message : 'Unknown error'}.`
    );
  } finally {
    if (loaderModal) loaderModal.classList.add('hidden');
--- a/src/js/logic/merge-pdf-page.ts
+++ b/src/js/logic/merge-pdf-page.ts
@@ -16,15 +16,15 @@ import {
 import { createIcons, icons } from 'lucide';
 import * as pdfjsLib from 'pdfjs-dist';
 import Sortable from 'sortablejs';
+import type { MergeJob, MergeFile, MergeMessage, MergeResponse } from '@/types';

-// @ts-ignore
 pdfjsLib.GlobalWorkerOptions.workerSrc = new URL(
  'pdfjs-dist/build/pdf.worker.min.mjs',
  import.meta.url
 ).toString();

 interface MergeState {
-  pdfDocs: Record<string, any>;
+  pdfDocs: Record<string, pdfjsLib.PDFDocumentProxy>;
  pdfBytes: Record<string, ArrayBuffer>;
  activeMode: 'file' | 'page';
  sortableInstances: {
@@ -66,10 +66,10 @@ function initializeFileListSortable() {
    ghostClass: 'sortable-ghost',
    chosenClass: 'sortable-chosen',
    dragClass: 'sortable-drag',
-    onStart: function (evt: any) {
+    onStart: function (evt: Sortable.SortableEvent) {
      evt.item.style.opacity = '0.5';
    },
-    onEnd: function (evt: any) {
+    onEnd: function (evt: Sortable.SortableEvent) {
      evt.item.style.opacity = '1';
    },
  });
@@ -88,10 +88,10 @@ function initializePageThumbnailsSortable() {
    ghostClass: 'sortable-ghost',
    chosenClass: 'sortable-chosen',
    dragClass: 'sortable-drag',
-    onStart: function (evt: any) {
+    onStart: function (evt: Sortable.SortableEvent) {
      evt.item.style.opacity = '0.5';
    },
-    onEnd: function (evt: any) {
+    onEnd: function (evt: Sortable.SortableEvent) {
      evt.item.style.opacity = '1';
    },
  });
@@ -201,7 +201,7 @@ async function renderPageMergeThumbnails() {
          batchSize: 8,
          useLazyLoading: true,
          lazyLoadMargin: '300px',
-          onProgress: (current, total) => {
+          onProgress: () => {
            currentPageNumber++;
            showLoader(`Rendering page previews...`);
          },
@@ -288,9 +288,7 @@ export async function merge() {

  showLoader('Merging PDFs...');
  try {
-    // @ts-ignore
    const jobs: MergeJob[] = [];
-    // @ts-ignore
    const filesToMerge: MergeFile[] = [];
    const uniqueFileNames = new Set<string>();

@@ -387,7 +385,6 @@ export async function merge() {
      }
    }

-    // @ts-ignore
    const message: MergeMessage = {
      command: 'merge',
      files: filesToMerge,
@@ -400,7 +397,6 @@ export async function merge() {
      filesToMerge.map((f) => f.data)
    );

-    // @ts-ignore
    mergeWorker.onmessage = (e: MessageEvent<MergeResponse>) => {
      hideLoader();
      if (e.data.status === 'success') {
--- a/src/js/logic/mobi-to-pdf-page.ts
+++ b/src/js/logic/mobi-to-pdf-page.ts
@@ -2,9 +2,7 @@ import { showLoader, hideLoader, showAlert } from '../ui.js';
 import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
-import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import { loadPyMuPDF } from '../utils/pymupdf-loader.js';

 const FILETYPE = 'mobi';
 const EXTENSIONS = ['.mobi'];
@@ -141,12 +139,12 @@ document.addEventListener('DOMContentLoaded', () => {
          () => resetState()
        );
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      console.error(`[${TOOL_NAME}2PDF] ERROR:`, e);
      hideLoader();
      showAlert(
        'Error',
-        `An error occurred during conversion. Error: ${e.message}`
+        `An error occurred during conversion. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };
--- a/src/js/logic/odt-to-pdf-page.ts
+++ b/src/js/logic/odt-to-pdf-page.ts
@@ -1,215 +1,223 @@
 import { showLoader, hideLoader, showAlert } from '../ui.js';
-import {
-    downloadFile,
-    readFileAsArrayBuffer,
-    formatBytes,
-} from '../utils/helpers.js';
+import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';
-import { getLibreOfficeConverter, type LoadProgress } from '../utils/libreoffice-loader.js';
+import {
+  getLibreOfficeConverter,
+  type LoadProgress,
+} from '../utils/libreoffice-loader.js';

 document.addEventListener('DOMContentLoaded', () => {
-    state.files = [];
+  state.files = [];

-    const fileInput = document.getElementById('file-input') as HTMLInputElement;
-    const dropZone = document.getElementById('drop-zone');
-    const convertOptions = document.getElementById('convert-options');
-    const fileDisplayArea = document.getElementById('file-display-area');
-    const fileControls = document.getElementById('file-controls');
-    const addMoreBtn = document.getElementById('add-more-btn');
-    const clearFilesBtn = document.getElementById('clear-files-btn');
-    const backBtn = document.getElementById('back-to-tools');
-    const processBtn = document.getElementById('process-btn');
+  const fileInput = document.getElementById('file-input') as HTMLInputElement;
+  const dropZone = document.getElementById('drop-zone');
+  const convertOptions = document.getElementById('convert-options');
+  const fileDisplayArea = document.getElementById('file-display-area');
+  const fileControls = document.getElementById('file-controls');
+  const addMoreBtn = document.getElementById('add-more-btn');
+  const clearFilesBtn = document.getElementById('clear-files-btn');
+  const backBtn = document.getElementById('back-to-tools');
+  const processBtn = document.getElementById('process-btn');

-    if (backBtn) {
-        backBtn.addEventListener('click', () => {
-            window.location.href = import.meta.env.BASE_URL;
-        });
-    }
+  if (backBtn) {
+    backBtn.addEventListener('click', () => {
+      window.location.href = import.meta.env.BASE_URL;
+    });
+  }

-    const updateUI = async () => {
-        if (!convertOptions) return;
+  const updateUI = async () => {
+    if (!convertOptions) return;

-        if (state.files.length > 0) {
-            if (fileDisplayArea) {
-                fileDisplayArea.innerHTML = '';
+    if (state.files.length > 0) {
+      if (fileDisplayArea) {
+        fileDisplayArea.innerHTML = '';

-                for (let index = 0; index < state.files.length; index++) {
-                    const file = state.files[index];
-                    const fileDiv = document.createElement('div');
-                    fileDiv.className = 'flex items-center justify-between bg-gray-700 p-3 rounded-lg text-sm';
+        for (let index = 0; index < state.files.length; index++) {
+          const file = state.files[index];
+          const fileDiv = document.createElement('div');
+          fileDiv.className =
+            'flex items-center justify-between bg-gray-700 p-3 rounded-lg text-sm';

-                    const infoContainer = document.createElement('div');
-                    infoContainer.className = 'flex flex-col overflow-hidden';
+          const infoContainer = document.createElement('div');
+          infoContainer.className = 'flex flex-col overflow-hidden';

-                    const nameSpan = document.createElement('div');
-                    nameSpan.className = 'truncate font-medium text-gray-200 text-sm mb-1';
-                    nameSpan.textContent = file.name;
+          const nameSpan = document.createElement('div');
+          nameSpan.className =
+            'truncate font-medium text-gray-200 text-sm mb-1';
+          nameSpan.textContent = file.name;

-                    const metaSpan = document.createElement('div');
-                    metaSpan.className = 'text-xs text-gray-400';
-                    metaSpan.textContent = formatBytes(file.size);
+          const metaSpan = document.createElement('div');
+          metaSpan.className = 'text-xs text-gray-400';
+          metaSpan.textContent = formatBytes(file.size);

-                    infoContainer.append(nameSpan, metaSpan);
+          infoContainer.append(nameSpan, metaSpan);

-                    const removeBtn = document.createElement('button');
-                    removeBtn.className = 'ml-4 text-red-400 hover:text-red-300 flex-shrink-0';
-                    removeBtn.innerHTML = '<i data-lucide="trash-2" class="w-4 h-4"></i>';
-                    removeBtn.onclick = () => {
-                        state.files = state.files.filter((_, i) => i !== index);
-                        updateUI();
-                    };
-
-                    fileDiv.append(infoContainer, removeBtn);
-                    fileDisplayArea.appendChild(fileDiv);
-                }
-
-                createIcons({ icons });
-            }
-            if (fileControls) fileControls.classList.remove('hidden');
-            convertOptions.classList.remove('hidden');
-        } else {
-            if (fileDisplayArea) fileDisplayArea.innerHTML = '';
-            if (fileControls) fileControls.classList.add('hidden');
-            convertOptions.classList.add('hidden');
-        }
-    };
-
-    const resetState = () => {
-        state.files = [];
-        state.pdfDoc = null;
-        updateUI();
-    };
-
-    const convertToPdf = async () => {
-        try {
-            if (state.files.length === 0) {
-                showAlert('No Files', 'Please select at least one ODT file.');
-                hideLoader();
-                return;
-            }
-
-            const converter = getLibreOfficeConverter();
-
-            // Initialize LibreOffice if not already done
-            await converter.initialize((progress: LoadProgress) => {
-                showLoader(progress.message, progress.percent);
-            });
-
-            if (state.files.length === 1) {
-                const originalFile = state.files[0];
-
-                showLoader('Processing...');
-
-                const pdfBlob = await converter.convertToPdf(originalFile);
-
-                const fileName = originalFile.name.replace(/\.odt$/i, '') + '.pdf';
-
-                downloadFile(pdfBlob, fileName);
-
-                hideLoader();
-
-                showAlert(
-                    'Conversion Complete',
-                    `Successfully converted ${originalFile.name} to PDF.`,
-                    'success',
-                    () => resetState()
-                );
-            } else {
-                showLoader('Processing...');
-                const JSZip = (await import('jszip')).default;
-                const zip = new JSZip();
-
-                for (let i = 0; i < state.files.length; i++) {
-                    const file = state.files[i];
-                    showLoader(`Converting ${i + 1}/${state.files.length}: ${file.name}...`);
-
-                    const pdfBlob = await converter.convertToPdf(file);
-
-                    const baseName = file.name.replace(/\.odt$/i, '');
-                    const pdfBuffer = await pdfBlob.arrayBuffer();
-                    zip.file(`${baseName}.pdf`, pdfBuffer);
-                }
-
-                const zipBlob = await zip.generateAsync({ type: 'blob' });
-
-                downloadFile(zipBlob, 'odt-converted.zip');
-
-                hideLoader();
-
-                showAlert(
-                    'Conversion Complete',
-                    `Successfully converted ${state.files.length} ODT file(s) to PDF.`,
-                    'success',
-                    () => resetState()
-                );
-            }
-        } catch (e: any) {
-            hideLoader();
-            showAlert(
-                'Error',
-                `An error occurred during conversion. Error: ${e.message}`
-            );
-        }
-    };
-
-    const handleFileSelect = (files: FileList | null) => {
-        if (files && files.length > 0) {
-            state.files = [...state.files, ...Array.from(files)];
+          const removeBtn = document.createElement('button');
+          removeBtn.className =
+            'ml-4 text-red-400 hover:text-red-300 flex-shrink-0';
+          removeBtn.innerHTML = '<i data-lucide="trash-2" class="w-4 h-4"></i>';
+          removeBtn.onclick = () => {
+            state.files = state.files.filter((_, i) => i !== index);
            updateUI();
+          };
+
+          fileDiv.append(infoContainer, removeBtn);
+          fileDisplayArea.appendChild(fileDiv);
        }
-    };

-    if (fileInput && dropZone) {
-        fileInput.addEventListener('change', (e) => {
-            handleFileSelect((e.target as HTMLInputElement).files);
-        });
-
-        dropZone.addEventListener('dragover', (e) => {
-            e.preventDefault();
-            dropZone.classList.add('bg-gray-700');
-        });
-
-        dropZone.addEventListener('dragleave', (e) => {
-            e.preventDefault();
-            dropZone.classList.remove('bg-gray-700');
-        });
-
-        dropZone.addEventListener('drop', (e) => {
-            e.preventDefault();
-            dropZone.classList.remove('bg-gray-700');
-            const files = e.dataTransfer?.files;
-            if (files && files.length > 0) {
-                const odtFiles = Array.from(files).filter(f => f.name.toLowerCase().endsWith('.odt') || f.type === 'application/vnd.oasis.opendocument.text');
-                if (odtFiles.length > 0) {
-                    const dataTransfer = new DataTransfer();
-                    odtFiles.forEach(f => dataTransfer.items.add(f));
-                    handleFileSelect(dataTransfer.files);
-                }
-            }
-        });
-
-        // Clear value on click to allow re-selecting the same file
-        fileInput.addEventListener('click', () => {
-            fileInput.value = '';
-        });
-    }
-
-    if (addMoreBtn) {
-        addMoreBtn.addEventListener('click', () => {
-            fileInput.click();
-        });
-    }
-
-    if (clearFilesBtn) {
-        clearFilesBtn.addEventListener('click', () => {
-            resetState();
-        });
-    }
-
-    if (processBtn) {
-        processBtn.addEventListener('click', convertToPdf);
+        createIcons({ icons });
+      }
+      if (fileControls) fileControls.classList.remove('hidden');
+      convertOptions.classList.remove('hidden');
+    } else {
+      if (fileDisplayArea) fileDisplayArea.innerHTML = '';
+      if (fileControls) fileControls.classList.add('hidden');
+      convertOptions.classList.add('hidden');
    }
+  };

+  const resetState = () => {
+    state.files = [];
+    state.pdfDoc = null;
    updateUI();
+  };
+
+  const convertToPdf = async () => {
+    try {
+      if (state.files.length === 0) {
+        showAlert('No Files', 'Please select at least one ODT file.');
+        hideLoader();
+        return;
+      }
+
+      const converter = getLibreOfficeConverter();
+
+      // Initialize LibreOffice if not already done
+      await converter.initialize((progress: LoadProgress) => {
+        showLoader(progress.message, progress.percent);
+      });
+
+      if (state.files.length === 1) {
+        const originalFile = state.files[0];
+
+        showLoader('Processing...');
+
+        const pdfBlob = await converter.convertToPdf(originalFile);
+
+        const fileName = originalFile.name.replace(/\.odt$/i, '') + '.pdf';
+
+        downloadFile(pdfBlob, fileName);
+
+        hideLoader();
+
+        showAlert(
+          'Conversion Complete',
+          `Successfully converted ${originalFile.name} to PDF.`,
+          'success',
+          () => resetState()
+        );
+      } else {
+        showLoader('Processing...');
+        const JSZip = (await import('jszip')).default;
+        const zip = new JSZip();
+
+        for (let i = 0; i < state.files.length; i++) {
+          const file = state.files[i];
+          showLoader(
+            `Converting ${i + 1}/${state.files.length}: ${file.name}...`
+          );
+
+          const pdfBlob = await converter.convertToPdf(file);
+
+          const baseName = file.name.replace(/\.odt$/i, '');
+          const pdfBuffer = await pdfBlob.arrayBuffer();
+          zip.file(`${baseName}.pdf`, pdfBuffer);
+        }
+
+        const zipBlob = await zip.generateAsync({ type: 'blob' });
+
+        downloadFile(zipBlob, 'odt-converted.zip');
+
+        hideLoader();
+
+        showAlert(
+          'Conversion Complete',
+          `Successfully converted ${state.files.length} ODT file(s) to PDF.`,
+          'success',
+          () => resetState()
+        );
+      }
+    } catch (e: unknown) {
+      hideLoader();
+      showAlert(
+        'Error',
+        `An error occurred during conversion. Error: ${e instanceof Error ? e.message : String(e)}`
+      );
+    }
+  };
+
+  const handleFileSelect = (files: FileList | null) => {
+    if (files && files.length > 0) {
+      state.files = [...state.files, ...Array.from(files)];
+      updateUI();
+    }
+  };
+
+  if (fileInput && dropZone) {
+    fileInput.addEventListener('change', (e) => {
+      handleFileSelect((e.target as HTMLInputElement).files);
+    });
+
+    dropZone.addEventListener('dragover', (e) => {
+      e.preventDefault();
+      dropZone.classList.add('bg-gray-700');
+    });
+
+    dropZone.addEventListener('dragleave', (e) => {
+      e.preventDefault();
+      dropZone.classList.remove('bg-gray-700');
+    });
+
+    dropZone.addEventListener('drop', (e) => {
+      e.preventDefault();
+      dropZone.classList.remove('bg-gray-700');
+      const files = e.dataTransfer?.files;
+      if (files && files.length > 0) {
+        const odtFiles = Array.from(files).filter(
+          (f) =>
+            f.name.toLowerCase().endsWith('.odt') ||
+            f.type === 'application/vnd.oasis.opendocument.text'
+        );
+        if (odtFiles.length > 0) {
+          const dataTransfer = new DataTransfer();
+          odtFiles.forEach((f) => dataTransfer.items.add(f));
+          handleFileSelect(dataTransfer.files);
+        }
+      }
+    });
+
+    // Clear value on click to allow re-selecting the same file
+    fileInput.addEventListener('click', () => {
+      fileInput.value = '';
+    });
+  }
+
+  if (addMoreBtn) {
+    addMoreBtn.addEventListener('click', () => {
+      fileInput.click();
+    });
+  }
+
+  if (clearFilesBtn) {
+    clearFilesBtn.addEventListener('click', () => {
+      resetState();
+    });
+  }
+
+  if (processBtn) {
+    processBtn.addEventListener('click', convertToPdf);
+  }
+
+  updateUI();
 });
--- a/src/js/logic/organize-pdf-page.ts
+++ b/src/js/logic/organize-pdf-page.ts
@@ -15,10 +15,10 @@ pdfjsLib.GlobalWorkerOptions.workerSrc = new URL(

 interface OrganizeState {
  file: File | null;
-  pdfDoc: any;
-  pdfJsDoc: any;
+  pdfDoc: PDFDocument | null;
+  pdfJsDoc: pdfjsLib.PDFDocumentProxy | null;
  totalPages: number;
-  sortableInstance: any;
+  sortableInstance: Sortable | null;
 }

 const organizeState: OrganizeState = {
@@ -282,7 +282,7 @@ async function renderThumbnails() {
    canvas.width = viewport.width;
    canvas.height = viewport.height;
    const ctx = canvas.getContext('2d');
-    await page.render({ canvasContext: ctx, viewport }).promise;
+    await page.render({ canvas: null, canvasContext: ctx, viewport }).promise;

    const wrapper = document.createElement('div');
    wrapper.className =
--- a/src/js/logic/pages-to-pdf-page.ts
+++ b/src/js/logic/pages-to-pdf-page.ts
@@ -150,12 +150,12 @@ document.addEventListener('DOMContentLoaded', () => {
          () => resetState()
        );
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      hideLoader();
      console.error(`[${FILETYPE_NAME}ToPDF] Error:`, e);
      showAlert(
        'Error',
-        `An error occurred during conversion. Error: ${e.message}`
+        `An error occurred during conversion. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };
--- a/src/js/logic/pdf-booklet-page.ts
+++ b/src/js/logic/pdf-booklet-page.ts
@@ -226,9 +226,9 @@ async function generatePreview() {
      const ctx = offscreen.getContext('2d')!;

      await page.render({
-        canvasContext: ctx as any,
+        canvasContext: ctx as unknown as CanvasRenderingContext2D,
        viewport: viewport,
-        canvas: offscreen as any,
+        canvas: offscreen as unknown as HTMLCanvasElement,
      }).promise;

      const bitmap = await createImageBitmap(offscreen);
--- a/src/js/logic/pdf-layers-page.ts
+++ b/src/js/logic/pdf-layers-page.ts
@@ -7,9 +7,7 @@ import {
  getPDFDocument,
 } from '../utils/helpers.js';
 import { createIcons, icons } from 'lucide';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
-import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import { loadPyMuPDF } from '../utils/pymupdf-loader.js';
 import { loadPdfWithPasswordPrompt } from '../utils/password-prompt.js';

 interface LayerData {
@@ -24,7 +22,21 @@ interface LayerData {
 }

 let currentFile: File | null = null;
-let currentDoc: any = null;
+interface PyMuPDFDocument {
+  getLayerConfig: () => LayerData[];
+  addLayer: (name: string) => { number: number; xref: number };
+  setLayerConfig: (layers: LayerData[]) => void;
+  setLayerVisibility: (xref: number, visible: boolean) => void;
+  deleteOCG: (xref: number) => void;
+  addOCGWithParent: (
+    name: string,
+    parentXref: number
+  ) => { number: number; xref: number };
+  addOCG: (name: string) => { number: number; xref: number };
+  save: () => Uint8Array;
+}
+
+let currentDoc: PyMuPDFDocument | null = null;
 const layersMap = new Map<number, LayerData>();
 let nextDisplayOrder = 0;

@@ -274,7 +286,7 @@ document.addEventListener('DOMContentLoaded', () => {
        if (!childName || !childName.trim()) return;

        try {
-          const childXref = currentDoc.addOCGWithParent(
+          const childResult = currentDoc.addOCGWithParent(
            childName.trim(),
            parentXref
          );
@@ -285,9 +297,9 @@ document.addEventListener('DOMContentLoaded', () => {
            }
          });

-          layersMap.set(childXref, {
-            number: childXref,
-            xref: childXref,
+          layersMap.set(childResult.xref, {
+            number: childResult.number,
+            xref: childResult.xref,
            text: childName.trim(),
            on: true,
            locked: false,
@@ -316,16 +328,17 @@ document.addEventListener('DOMContentLoaded', () => {
      const pymupdf = await loadPyMuPDF();

      showLoader(`Loading layers from ${currentFile.name}...`);
-      currentDoc = await pymupdf.open(currentFile);
+      currentDoc = await (
+        pymupdf as { open: (file: File) => Promise<PyMuPDFDocument> }
+      ).open(currentFile);

      showLoader('Reading layer configuration...');
      const existingLayers = currentDoc.getLayerConfig();

-      // Reset and populate layers map
      layersMap.clear();
      nextDisplayOrder = 0;

-      existingLayers.forEach((layer: any) => {
+      existingLayers.forEach((layer: LayerData) => {
        layersMap.set(layer.number, {
          number: layer.number,
          xref: layer.xref ?? layer.number,
@@ -350,9 +363,12 @@ document.addEventListener('DOMContentLoaded', () => {

      renderLayers();
      setupLayerHandlers();
-    } catch (error: any) {
+    } catch (error: unknown) {
      hideLoader();
-      showAlert('Error', error.message || 'Failed to load PDF layers');
+      showAlert(
+        'Error',
+        error instanceof Error ? error.message : 'Failed to load PDF layers'
+      );
      console.error('Layers error:', error);
    }
  };
@@ -373,13 +389,13 @@ document.addEventListener('DOMContentLoaded', () => {
        }

        try {
-          const xref = currentDoc.addOCG(name);
+          const layerResult = currentDoc.addOCG(name);
          newLayerInput.value = '';

          const newDisplayOrder = nextDisplayOrder++;
-          layersMap.set(xref, {
-            number: xref,
-            xref: xref,
+          layersMap.set(layerResult.xref, {
+            number: layerResult.number,
+            xref: layerResult.xref,
            text: name,
            on: true,
            locked: false,
@@ -389,8 +405,12 @@ document.addEventListener('DOMContentLoaded', () => {
          });

          renderLayers();
-        } catch (err: any) {
-          showAlert('Error', 'Failed to add layer: ' + err.message);
+        } catch (err: unknown) {
+          showAlert(
+            'Error',
+            'Failed to add layer: ' +
+              (err instanceof Error ? err.message : String(err))
+          );
        }
      };
    }
@@ -409,9 +429,13 @@ document.addEventListener('DOMContentLoaded', () => {
          hideLoader();
          resetState();
          showAlert('Success', 'PDF with layer changes saved!', 'success');
-        } catch (err: any) {
+        } catch (err: unknown) {
          hideLoader();
-          showAlert('Error', 'Failed to save PDF: ' + err.message);
+          showAlert(
+            'Error',
+            'Failed to save PDF: ' +
+              (err instanceof Error ? err.message : String(err))
+          );
        }
      };
    }
--- a/src/js/logic/pdf-multi-tool.ts
+++ b/src/js/logic/pdf-multi-tool.ts
@@ -9,7 +9,6 @@ import {
  renderPagesProgressively,
  cleanupLazyRendering,
  renderPageToCanvas,
-  createPlaceholder,
 } from '../utils/render-utils';
 import { initializeGlobalShortcuts } from '../utils/shortcuts-init.js';
 import { repairPdfFile } from './repair-pdf.js';
@@ -841,7 +840,7 @@ function deletePage(index: number) {

 async function insertPdfAfter(index: number) {
  document.getElementById('insert-pdf-input')?.click();
-  (window as any).__insertAfterIndex = index;
+  (window as unknown as Record<string, unknown>).__insertAfterIndex = index;
 }

 async function handleInsertPdf(e: Event) {
@@ -849,7 +848,8 @@ async function handleInsertPdf(e: Event) {
  const file = input.files?.[0];
  if (!file) return;

-  const insertAfterIndex = (window as any).__insertAfterIndex;
+  const insertAfterIndex = (window as unknown as Record<string, unknown>)
+    .__insertAfterIndex as number | undefined;
  if (insertAfterIndex === undefined) return;

  try {
@@ -974,7 +974,7 @@ function addBlankPage() {
    rotation: 0,
    visualRotation: 0,
    canvas,
-    pdfDoc: null as any,
+    pdfDoc: null!,
    originalPageIndex: -1,
    fileName: '', // Blank page has no file
  };
--- a/src/js/logic/pdf-to-csv-page.ts
+++ b/src/js/logic/pdf-to-csv-page.ts
@@ -1,10 +1,7 @@
 import { showLoader, hideLoader, showAlert } from '../ui.js';
 import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { createIcons, icons } from 'lucide';
-import JSZip from 'jszip';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
-import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import { loadPyMuPDF } from '../utils/pymupdf-loader.js';
 import { loadPdfWithPasswordPrompt } from '../utils/password-prompt.js';
 let file: File | null = null;

--- a/src/js/logic/pdf-to-docx-page.ts
+++ b/src/js/logic/pdf-to-docx-page.ts
@@ -8,9 +8,7 @@ import {
 } from '../utils/helpers.js';
 import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
-import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import { loadPyMuPDF } from '../utils/pymupdf-loader.js';
 import { batchDecryptIfNeeded } from '../utils/password-prompt.js';
 import { deduplicateFileName } from '../utils/deduplicate-filename.js';

@@ -73,7 +71,7 @@ document.addEventListener('DOMContentLoaded', () => {
          const arrayBuffer = await readFileAsArrayBuffer(file);
          const pdfDoc = await getPDFDocument({ data: arrayBuffer }).promise;
          metaSpan.textContent = `${formatBytes(file.size)} • ${pdfDoc.numPages} pages`;
-        } catch (error) {
+        } catch {
          metaSpan.textContent = `${formatBytes(file.size)} • Could not load page count`;
        }
      }
@@ -160,11 +158,11 @@ document.addEventListener('DOMContentLoaded', () => {
          () => resetState()
        );
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      hideLoader();
      showAlert(
        'Error',
-        `An error occurred during conversion. Error: ${e.message}`
+        `An error occurred during conversion. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };
--- a/src/js/logic/pdf-to-excel-page.ts
+++ b/src/js/logic/pdf-to-excel-page.ts
@@ -1,9 +1,7 @@
 import { showLoader, hideLoader, showAlert } from '../ui.js';
 import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { createIcons, icons } from 'lucide';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
-import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import { loadPyMuPDF } from '../utils/pymupdf-loader.js';
 import { loadPdfWithPasswordPrompt } from '../utils/password-prompt.js';
 import * as XLSX from 'xlsx';
 let file: File | null = null;
--- a/src/js/logic/pdf-to-markdown-page.ts
+++ b/src/js/logic/pdf-to-markdown-page.ts
@@ -8,9 +8,7 @@ import {
 } from '../utils/helpers.js';
 import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
-import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import { loadPyMuPDF } from '../utils/pymupdf-loader.js';
 import { batchDecryptIfNeeded } from '../utils/password-prompt.js';
 import { deduplicateFileName } from '../utils/deduplicate-filename.js';

@@ -76,7 +74,7 @@ document.addEventListener('DOMContentLoaded', () => {
          const arrayBuffer = await readFileAsArrayBuffer(file);
          const pdfDoc = await getPDFDocument({ data: arrayBuffer }).promise;
          metaSpan.textContent = `${formatBytes(file.size)} • ${pdfDoc.numPages} pages`;
-        } catch (error) {
+        } catch {
          metaSpan.textContent = `${formatBytes(file.size)} • Could not load page count`;
        }
      }
@@ -162,11 +160,11 @@ document.addEventListener('DOMContentLoaded', () => {
          () => resetState()
        );
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      hideLoader();
      showAlert(
        'Error',
-        `An error occurred during conversion. Error: ${e.message}`
+        `An error occurred during conversion. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };
--- a/src/js/logic/pdf-to-markdown.ts
+++ b/src/js/logic/pdf-to-markdown.ts
@@ -1,5 +1,9 @@
 import { showLoader, hideLoader, showAlert } from '../ui.js';
-import { downloadFile, readFileAsArrayBuffer, getPDFDocument } from '../utils/helpers.js';
+import {
+  downloadFile,
+  readFileAsArrayBuffer,
+  getPDFDocument,
+} from '../utils/helpers.js';
 import { state } from '../state.js';

 export async function pdfToMarkdown() {
@@ -14,7 +18,9 @@ export async function pdfToMarkdown() {
      const page = await pdf.getPage(i);
      const content = await page.getTextContent();
      // This is a simple text extraction. For more advanced formatting, more complex logic is needed.
-      const text = content.items.map((item: any) => item.str).join(' ');
+      const text = content.items
+        .map((item) => ('str' in item ? item.str : ''))
+        .join(' ');
      markdown += text + '\n\n'; // Add double newline for paragraph breaks between pages
    }

--- a/src/js/logic/pdf-to-pdfa-page.ts
+++ b/src/js/logic/pdf-to-pdfa-page.ts
@@ -10,6 +10,7 @@ import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';
 import { convertFileToPdfA, type PdfALevel } from '../utils/ghostscript-loader';
 import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import type { PyMuPDFInstance } from '@/types';
 import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
 import { batchDecryptIfNeeded } from '../utils/password-prompt.js';
 import { deduplicateFileName } from '../utils/deduplicate-filename.js';
@@ -134,7 +135,7 @@ document.addEventListener('DOMContentLoaded', () => {
          const pymupdf = await loadPyMuPDF();

          // Rasterize PDF to images and back to PDF (300 DPI for quality)
-          const flattenedBlob = await (pymupdf as any).rasterizePdf(
+          const flattenedBlob = await (pymupdf as PyMuPDFInstance).rasterizePdf(
            originalFile,
            {
              dpi: 300,
@@ -205,11 +206,11 @@ document.addEventListener('DOMContentLoaded', () => {
          () => resetState()
        );
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      hideLoader();
      showAlert(
        'Error',
-        `An error occurred during conversion. Error: ${e.message}`
+        `An error occurred during conversion. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };
--- a/src/js/logic/pdf-to-svg-page.ts
+++ b/src/js/logic/pdf-to-svg-page.ts
@@ -2,12 +2,12 @@ import { showLoader, hideLoader, showAlert } from '../ui.js';
 import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { createIcons, icons } from 'lucide';
 import JSZip from 'jszip';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
 import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import type { PyMuPDFInstance } from '@/types';
 import { batchDecryptIfNeeded } from '../utils/password-prompt.js';
+import { showWasmRequiredDialog } from '../utils/wasm-provider.js';

-let pymupdf: any = null;
+let pymupdf: PyMuPDFInstance | null = null;
 let files: File[] = [];

 const updateUI = () => {
--- a/src/js/logic/pdf-to-text-page.ts
+++ b/src/js/logic/pdf-to-text-page.ts
@@ -1,14 +1,13 @@
 import { createIcons, icons } from 'lucide';
 import { showAlert, showLoader, hideLoader } from '../ui.js';
 import { downloadFile, formatBytes } from '../utils/helpers.js';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
-import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import { loadPyMuPDF } from '../utils/pymupdf-loader.js';
+import type { PyMuPDFInstance } from '@/types';
 import { batchDecryptIfNeeded } from '../utils/password-prompt.js';
 import { deduplicateFileName } from '../utils/deduplicate-filename.js';

 let files: File[] = [];
-let pymupdf: any = null;
+let pymupdf: PyMuPDFInstance | null = null;

 if (document.readyState === 'loading') {
  document.addEventListener('DOMContentLoaded', initializePage);
@@ -159,9 +158,9 @@ function updateUI() {
  }
 }

-async function ensurePyMuPDF(): Promise<any> {
+async function ensurePyMuPDF(): Promise<PyMuPDFInstance> {
  if (!pymupdf) {
-    pymupdf = await loadPyMuPDF();
+    pymupdf = (await loadPyMuPDF()) as PyMuPDFInstance;
  }
  return pymupdf;
 }
@@ -230,12 +229,12 @@ async function extractText() {
        }
      );
    }
-  } catch (e: any) {
+  } catch (e: unknown) {
    console.error('[PDFToText]', e);
    hideLoader();
    showAlert(
      'Extraction Error',
-      e.message || 'Failed to extract text from PDF.'
+      e instanceof Error ? e.message : 'Failed to extract text from PDF.'
    );
  }
 }
--- a/src/js/logic/pdf-workflow-page.ts
+++ b/src/js/logic/pdf-workflow-page.ts
@@ -913,8 +913,15 @@ function showNodeSettings(node: BaseWorkflowNode) {
    content.appendChild(divider);
  }

+  interface FileInputNode extends BaseWorkflowNode {
+    hasFile(): boolean;
+    getFilenames(): string[];
+    removeFile(index: number): void;
+    addFiles(files: File[]): Promise<void>;
+  }
+
  const fileInputConfigs: {
-    cls: any;
+    cls: new (...args: unknown[]) => FileInputNode;
    label: string;
    accept: string;
    btnLabel: string;
@@ -1534,7 +1541,7 @@ function showNodeSettings(node: BaseWorkflowNode) {
    }
  }

-  for (const [dropdownKey, mapping] of Object.entries(conditionalVisibility)) {
+  for (const [dropdownKey] of Object.entries(conditionalVisibility)) {
    const ctrl = controlEntries.find(([k]) => k === dropdownKey)?.[1] as
      | { value?: unknown }
      | undefined;
--- a/src/js/logic/png-to-pdf-page.ts
+++ b/src/js/logic/png-to-pdf-page.ts
@@ -160,9 +160,13 @@ function updateUI() {
  }
 }

-function sanitizeImageAsJpeg(imageBytes: any) {
+function sanitizeImageAsJpeg(imageBytes: Uint8Array | ArrayBuffer) {
  return new Promise((resolve, reject) => {
-    const blob = new Blob([imageBytes]);
+    const blob = new Blob([
+      imageBytes instanceof Uint8Array
+        ? new Uint8Array(imageBytes)
+        : imageBytes,
+    ]);
    const imageUrl = URL.createObjectURL(blob);
    const img = new Image();

@@ -248,9 +252,9 @@ async function convertToPdf() {
    showAlert('Success', 'PDF created successfully!', 'success', () => {
      resetState();
    });
-  } catch (e: any) {
+  } catch (e: unknown) {
    console.error(e);
-    showAlert('Conversion Error', e.message);
+    showAlert('Conversion Error', e instanceof Error ? e.message : String(e));
  } finally {
    hideLoader();
  }
--- a/src/js/logic/powerpoint-to-pdf-page.ts
+++ b/src/js/logic/powerpoint-to-pdf-page.ts
@@ -1,9 +1,5 @@
 import { showLoader, hideLoader, showAlert } from '../ui.js';
-import {
-  downloadFile,
-  readFileAsArrayBuffer,
-  formatBytes,
-} from '../utils/helpers.js';
+import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';
 import {
@@ -159,11 +155,11 @@ document.addEventListener('DOMContentLoaded', () => {
          () => resetState()
        );
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      hideLoader();
      showAlert(
        'Error',
-        `An error occurred during conversion. Error: ${e.message}`
+        `An error occurred during conversion. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };
--- a/src/js/logic/prepare-pdf-for-ai-page.ts
+++ b/src/js/logic/prepare-pdf-for-ai-page.ts
@@ -9,6 +9,7 @@ import {
 import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';
 import { loadPyMuPDF } from '../utils/pymupdf-loader.js';
+import type { PyMuPDFInstance } from '@/types';
 import { batchDecryptIfNeeded } from '../utils/password-prompt.js';
 import { deduplicateFileName } from '../utils/deduplicate-filename.js';

@@ -117,7 +118,9 @@ document.addEventListener('DOMContentLoaded', () => {
        const file = state.files[0];
        showLoader(`Extracting ${file.name} for AI...`);

-        const llamaDocs = await (pymupdf as any).pdfToLlamaIndex(file);
+        const llamaDocs = await (pymupdf as PyMuPDFInstance).pdfToLlamaIndex(
+          file
+        );
        const outName = file.name.replace(/\.pdf$/i, '') + '_llm.json';
        const jsonContent = JSON.stringify(llamaDocs, null, 2);
        downloadFile(
@@ -144,7 +147,9 @@ document.addEventListener('DOMContentLoaded', () => {
              `Extracting ${file.name} for AI (${completed + 1}/${total})...`
            );

-            const llamaDocs = await (pymupdf as any).pdfToLlamaIndex(file);
+            const llamaDocs = await (
+              pymupdf as PyMuPDFInstance
+            ).pdfToLlamaIndex(file);
            const outName = file.name.replace(/\.pdf$/i, '') + '_llm.json';
            const jsonContent = JSON.stringify(llamaDocs, null, 2);
            const zipEntryName = deduplicateFileName(outName, usedNames);
@@ -180,11 +185,11 @@ document.addEventListener('DOMContentLoaded', () => {
          );
        }
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      hideLoader();
      showAlert(
        'Error',
-        `An error occurred during extraction. Error: ${e.message}`
+        `An error occurred during extraction. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };
--- a/src/js/logic/psd-to-pdf-page.ts
+++ b/src/js/logic/psd-to-pdf-page.ts
@@ -2,18 +2,17 @@ import { showLoader, hideLoader, showAlert } from '../ui.js';
 import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
-import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import { loadPyMuPDF } from '../utils/pymupdf-loader.js';
+import type { PyMuPDFInstance } from '@/types';

 const ACCEPTED_EXTENSIONS = ['.psd'];
 const FILETYPE_NAME = 'PSD';

-let pymupdf: any = null;
+let pymupdf: PyMuPDFInstance | null = null;

-async function ensurePyMuPDF(): Promise<any> {
+async function ensurePyMuPDF(): Promise<PyMuPDFInstance> {
  if (!pymupdf) {
-    pymupdf = await loadPyMuPDF();
+    pymupdf = (await loadPyMuPDF()) as PyMuPDFInstance;
  }
  return pymupdf;
 }
--- a/src/js/logic/rasterize-pdf-page.ts
+++ b/src/js/logic/rasterize-pdf-page.ts
@@ -8,11 +8,11 @@ import {
 } from '../utils/helpers.js';
 import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
 import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import type { PyMuPDFInstance } from '@/types';
 import { batchDecryptIfNeeded } from '../utils/password-prompt.js';
 import { deduplicateFileName } from '../utils/deduplicate-filename.js';
+import { showWasmRequiredDialog } from '../utils/wasm-provider.js';

 document.addEventListener('DOMContentLoaded', () => {
  const fileInput = document.getElementById('file-input') as HTMLInputElement;
@@ -136,12 +136,15 @@ document.addEventListener('DOMContentLoaded', () => {
        const file = state.files[0];
        showLoader(`Rasterizing ${file.name}...`);

-        const rasterizedBlob = await (pymupdf as any).rasterizePdf(file, {
-          dpi,
-          format,
-          grayscale,
-          quality: 95,
-        });
+        const rasterizedBlob = await (pymupdf as PyMuPDFInstance).rasterizePdf(
+          file,
+          {
+            dpi,
+            format,
+            grayscale,
+            quality: 95,
+          }
+        );

        const outName = file.name.replace(/\.pdf$/i, '') + '_rasterized.pdf';
        downloadFile(rasterizedBlob, outName);
@@ -165,7 +168,9 @@ document.addEventListener('DOMContentLoaded', () => {
              `Rasterizing ${file.name} (${completed + 1}/${total})...`
            );

-            const rasterizedBlob = await (pymupdf as any).rasterizePdf(file, {
+            const rasterizedBlob = await (
+              pymupdf as PyMuPDFInstance
+            ).rasterizePdf(file, {
              dpi,
              format,
              grayscale,
@@ -210,11 +215,11 @@ document.addEventListener('DOMContentLoaded', () => {
          );
        }
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      hideLoader();
      showAlert(
        'Error',
-        `An error occurred during rasterization. Error: ${e.message}`
+        `An error occurred during rasterization. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };
--- a/src/js/logic/redact.ts
+++ b/src/js/logic/redact.ts
@@ -2,16 +2,18 @@ import { showLoader, hideLoader, showAlert } from '../ui.js';
 import { downloadFile } from '../utils/helpers.js';
 import { state } from '../state.js';

+import type { RedactionRect } from '@/types';
+
 // @ts-expect-error TS(2339) FIXME: Property 'PDFLib' does not exist on type 'Window &... Remove this comment to see the full error message
 const { rgb } = window.PDFLib;

-export async function redact(redactions: any, canvasScale: any) {
+export async function redact(redactions: RedactionRect[], canvasScale: number) {
  showLoader('Applying redactions...');
  try {
    const pdfPages = state.pdfDoc.getPages();
    const conversionScale = 1 / canvasScale;

-    redactions.forEach((r: any) => {
+    redactions.forEach((r: RedactionRect) => {
      const page = pdfPages[r.pageIndex];
      const { height: pageHeight } = page.getSize();

@@ -32,7 +34,7 @@ export async function redact(redactions: any, canvasScale: any) {

    const redactedBytes = await state.pdfDoc.save();
    downloadFile(
-      new Blob([redactedBytes], { type: 'application/pdf' }),
+      new Blob([new Uint8Array(redactedBytes)], { type: 'application/pdf' }),
      'redacted.pdf'
    );
  } catch (e) {
--- a/src/js/logic/remove-blank-pages-page.ts
+++ b/src/js/logic/remove-blank-pages-page.ts
@@ -36,7 +36,7 @@ function hideLoader() {
 function showAlert(
  title: string,
  msg: string,
-  type = 'error',
+  _type = 'error',
  cb?: () => void
 ) {
  const modal = document.getElementById('alert-modal');
@@ -138,7 +138,7 @@ async function handleFileUpload(file: File) {
 }

 async function isPageBlank(
-  page: any,
+  page: pdfjsLib.PDFPageProxy,
  maxNonWhitePercent = 0.5
 ): Promise<boolean> {
  const viewport = page.getViewport({ scale: 0.5 });
@@ -149,7 +149,7 @@ async function isPageBlank(
  canvas.width = viewport.width;
  canvas.height = viewport.height;

-  await page.render({ canvasContext: ctx, viewport }).promise;
+  await page.render({ canvas: null, canvasContext: ctx, viewport }).promise;

  const imageData = ctx.getImageData(0, 0, canvas.width, canvas.height);
  const data = imageData.data;
@@ -165,7 +165,7 @@ async function isPageBlank(
  return nonWhitePercent <= maxNonWhitePercent;
 }

-async function generateThumbnail(page: any): Promise<string> {
+async function generateThumbnail(page: pdfjsLib.PDFPageProxy): Promise<string> {
  const viewport = page.getViewport({ scale: 1 });
  const canvas = document.createElement('canvas');
  const ctx = canvas.getContext('2d');
@@ -174,7 +174,7 @@ async function generateThumbnail(page: any): Promise<string> {
  canvas.width = viewport.width;
  canvas.height = viewport.height;

-  await page.render({ canvasContext: ctx, viewport }).promise;
+  await page.render({ canvas: null, canvasContext: ctx, viewport }).promise;
  return canvas.toDataURL('image/jpeg', 0.7);
 }

--- a/src/js/logic/remove-restrictions-page.ts
+++ b/src/js/logic/remove-restrictions-page.ts
@@ -6,7 +6,7 @@ import {
  readFileAsArrayBuffer,
 } from '../utils/helpers.js';
 import { icons, createIcons } from 'lucide';
-import { RemoveRestrictionsState } from '@/types';
+import { RemoveRestrictionsState, QpdfInstanceExtended } from '@/types';

 const pageState: RemoveRestrictionsState = {
  file: null,
@@ -98,7 +98,7 @@ async function removeRestrictions() {

  const inputPath = '/input.pdf';
  const outputPath = '/output.pdf';
-  let qpdf: any;
+  let qpdf: QpdfInstanceExtended;

  const loaderModal = document.getElementById('loader-modal');
  const loaderText = document.getElementById('loader-text');
@@ -127,12 +127,10 @@ async function removeRestrictions() {

    try {
      qpdf.callMain(args);
-    } catch (qpdfError: any) {
+    } catch (qpdfError: unknown) {
      console.error('qpdf execution error:', qpdfError);
-      if (
-        qpdfError.message?.includes('password') ||
-        qpdfError.message?.includes('encrypt')
-      ) {
+      const qpdfMsg = qpdfError instanceof Error ? qpdfError.message : '';
+      if (qpdfMsg.includes('password') || qpdfMsg.includes('encrypt')) {
        throw new Error(
          'Failed to remove restrictions. The PDF may require the correct owner password.',
          { cause: qpdfError }
@@ -140,8 +138,7 @@ async function removeRestrictions() {
      }

      throw new Error(
-        'Failed to remove restrictions: ' +
-          (qpdfError.message || 'Unknown error'),
+        'Failed to remove restrictions: ' + (qpdfMsg || 'Unknown error'),
        { cause: qpdfError }
      );
    }
@@ -153,7 +150,9 @@ async function removeRestrictions() {
      throw new Error('Operation resulted in an empty file.');
    }

-    const blob = new Blob([outputFile], { type: 'application/pdf' });
+    const blob = new Blob([new Uint8Array(outputFile)], {
+      type: 'application/pdf',
+    });
    downloadFile(blob, `unrestricted-${pageState.file.name}`);

    if (loaderModal) loaderModal.classList.add('hidden');
@@ -166,12 +165,12 @@ async function removeRestrictions() {
        resetState();
      }
    );
-  } catch (error: any) {
+  } catch (error: unknown) {
    console.error('Error during restriction removal:', error);
    if (loaderModal) loaderModal.classList.add('hidden');
    showAlert(
      'Operation Failed',
-      `An error occurred: ${error.message || 'The PDF might be corrupted or password-protected.'}`
+      `An error occurred: ${error instanceof Error ? error.message : 'The PDF might be corrupted or password-protected.'}`
    );
  } finally {
    try {
--- a/src/js/logic/repair-pdf.ts
+++ b/src/js/logic/repair-pdf.ts
@@ -8,11 +8,12 @@ import { state } from '../state.js';
 import JSZip from 'jszip';
 import { deduplicateFileName } from '../utils/deduplicate-filename.js';
 import { batchDecryptIfNeeded } from '../utils/password-prompt.js';
+import type { QpdfInstanceExtended } from '@/types';

 export async function repairPdfFile(file: File): Promise<Uint8Array | null> {
  const inputPath = '/input.pdf';
  const outputPath = '/repaired_form.pdf';
-  let qpdf: any;
+  let qpdf: QpdfInstanceExtended;

  try {
    qpdf = await initializeQpdf();
--- a/src/js/logic/rtf-to-pdf-page.ts
+++ b/src/js/logic/rtf-to-pdf-page.ts
@@ -1,9 +1,5 @@
 import { showLoader, hideLoader, showAlert } from '../ui.js';
-import {
-  downloadFile,
-  readFileAsArrayBuffer,
-  formatBytes,
-} from '../utils/helpers.js';
+import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';
 import {
@@ -158,11 +154,11 @@ document.addEventListener('DOMContentLoaded', () => {
          () => resetState()
        );
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      hideLoader();
      showAlert(
        'Error',
-        `An error occurred during conversion. Error: ${e.message}`
+        `An error occurred during conversion. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };
--- a/src/js/logic/shortcuts.ts
+++ b/src/js/logic/shortcuts.ts
@@ -1,192 +1,202 @@
 import { categories } from '../config/tools.js';
+import type { ToolEntry } from '@/types';

 export class ShortcutsManager {
-    private static STORAGE_KEY = 'bentopdf_shortcuts';
-    private static shortcuts: Map<string, string> = new Map();
-    private static defaultShortcuts: Map<string, string> = new Map();
+  private static STORAGE_KEY = 'bentopdf_shortcuts';
+  private static shortcuts: Map<string, string> = new Map();
+  private static defaultShortcuts: Map<string, string> = new Map();

-    private static getToolId(tool: any): string {
-        if (tool.id) return tool.id;
-        if (tool.href) {
-            // Extract filename without extension from href
-            const match = tool.href.match(/\/([^/]+)\.html$/);
-            return match ? match[1] : tool.href;
-        }
-        return 'unknown';
+  private static getToolId(tool: ToolEntry): string {
+    if (tool.id) return tool.id;
+    if (tool.href) {
+      // Extract filename without extension from href
+      const match = tool.href.match(/\/([^/]+)\.html$/);
+      return match ? match[1] : tool.href;
    }
+    return 'unknown';
+  }

-    static init() {
-        this.loadDefaults();
-        this.loadFromStorage();
-        this.setupGlobalListener();
-    }
+  static init() {
+    this.loadDefaults();
+    this.loadFromStorage();
+    this.setupGlobalListener();
+  }

-    private static loadDefaults() {
-        this.defaultShortcuts.set('merge', 'mod+shift+m');
-        this.defaultShortcuts.set('split', 'mod+shift+s');
-        this.defaultShortcuts.set('compress', 'mod+shift+c');
-    }
+  private static loadDefaults() {
+    this.defaultShortcuts.set('merge', 'mod+shift+m');
+    this.defaultShortcuts.set('split', 'mod+shift+s');
+    this.defaultShortcuts.set('compress', 'mod+shift+c');
+  }

-    private static loadFromStorage() {
-        const stored = localStorage.getItem(this.STORAGE_KEY);
-        if (stored) {
-            try {
-                const parsed = JSON.parse(stored);
-                this.shortcuts = new Map(Object.entries(parsed));
+  private static loadFromStorage() {
+    const stored = localStorage.getItem(this.STORAGE_KEY);
+    if (stored) {
+      try {
+        const parsed = JSON.parse(stored);
+        this.shortcuts = new Map(Object.entries(parsed));

-                const allTools = categories.flatMap(c => c.tools);
-                const validToolIds = allTools.map(t => this.getToolId(t));
-                for (const [toolId, _] of this.shortcuts.entries()) {
-                    if (!validToolIds.includes(toolId)) {
-                        this.shortcuts.delete(toolId);
-                    }
-                }
-
-                if (this.shortcuts.size !== Object.keys(parsed).length) {
-                    this.save();
-                }
-            } catch (e) {
-                console.error('Failed to parse shortcuts from local storage', e);
-                this.shortcuts = new Map(this.defaultShortcuts);
-            }
-        } else {
-            this.shortcuts = new Map(this.defaultShortcuts);
-        }
-    }
-
-    static save() {
-        const obj = Object.fromEntries(this.shortcuts);
-        localStorage.setItem(this.STORAGE_KEY, JSON.stringify(obj));
-    }
-
-    static reset() {
-        this.shortcuts = new Map(this.defaultShortcuts);
-        this.save();
-        // Dispatch event to update UI if needed
-        window.dispatchEvent(new CustomEvent('shortcuts-updated'));
-    }
-
-    static getShortcut(toolId: string): string | undefined {
-        return this.shortcuts.get(toolId);
-    }
-
-    static findToolByShortcut(key: string): string | undefined {
-        for (const [id, k] of this.shortcuts.entries()) {
-            if (k === key) {
-                return id;
-            }
-        }
-        return undefined;
-    }
-
-    static setShortcut(toolId: string, key: string) {
-        if (key) {
-            this.shortcuts.set(toolId, key);
-        } else {
+        const allTools = categories.flatMap((c) => c.tools);
+        const validToolIds = allTools.map((t) => this.getToolId(t));
+        for (const [toolId] of this.shortcuts.entries()) {
+          if (!validToolIds.includes(toolId)) {
            this.shortcuts.delete(toolId);
+          }
        }
-        this.save();
-        window.dispatchEvent(new CustomEvent('shortcuts-updated'));
-    }

-    static getAllShortcuts(): Map<string, string> {
-        return this.shortcuts;
-    }
-
-    static exportSettings() {
-        // Create a map with all tools, defaulting to empty string if not set
-        const exportObj: Record<string, string> = {};
-
-        const allTools = categories.flatMap(c => c.tools);
-
-        allTools.forEach(tool => {
-            const toolId = this.getToolId(tool);
-            exportObj[toolId] = this.shortcuts.get(toolId) || '';
-        });
-
-        const dataStr = "data:text/json;charset=utf-8," + encodeURIComponent(JSON.stringify(exportObj, null, 2));
-        const downloadAnchorNode = document.createElement('a');
-        downloadAnchorNode.setAttribute("href", dataStr);
-        downloadAnchorNode.setAttribute("download", "bentopdf_shortcuts.json");
-        document.body.appendChild(downloadAnchorNode);
-        downloadAnchorNode.click();
-        downloadAnchorNode.remove();
-    }
-
-    static importSettings(jsonString: string): boolean {
-        try {
-            const parsed = JSON.parse(jsonString);
-            for (const key in parsed) {
-                if (typeof parsed[key] !== 'string') {
-                    throw new Error('Invalid shortcut format');
-                }
-            }
-            this.shortcuts = new Map(Object.entries(parsed));
-            this.save();
-            window.dispatchEvent(new CustomEvent('shortcuts-updated'));
-            return true;
-        } catch (e) {
-            console.error('Import failed', e);
-            return false;
+        if (this.shortcuts.size !== Object.keys(parsed).length) {
+          this.save();
        }
+      } catch (e) {
+        console.error('Failed to parse shortcuts from local storage', e);
+        this.shortcuts = new Map(this.defaultShortcuts);
+      }
+    } else {
+      this.shortcuts = new Map(this.defaultShortcuts);
    }
+  }

-    private static setupGlobalListener() {
-        window.addEventListener('keydown', (e) => {
-            // Ignore if typing in an input or textarea
-            const target = e.target as HTMLElement;
-            if (target.tagName === 'INPUT' || target.tagName === 'TEXTAREA' || target.isContentEditable) {
-                return;
-            }
+  static save() {
+    const obj = Object.fromEntries(this.shortcuts);
+    localStorage.setItem(this.STORAGE_KEY, JSON.stringify(obj));
+  }

-            // Build key string
-            const keys: string[] = [];
-            const isMac = navigator.userAgent.toUpperCase().includes('MAC');
+  static reset() {
+    this.shortcuts = new Map(this.defaultShortcuts);
+    this.save();
+    // Dispatch event to update UI if needed
+    window.dispatchEvent(new CustomEvent('shortcuts-updated'));
+  }

-            // On Mac: metaKey = Command, ctrlKey = Control
-            // On Windows/Linux: metaKey is rare, ctrlKey = Ctrl
-            if (isMac) {
-                if (e.metaKey) keys.push('mod'); // Command on Mac
-                if (e.ctrlKey) keys.push('ctrl'); // Control on Mac (separate from Command)
-            } else {
-                if (e.ctrlKey || e.metaKey) keys.push('mod'); // Ctrl on Windows/Linux
-            }
-            if (e.altKey) keys.push('alt');
-            if (e.shiftKey) keys.push('shift');
+  static getShortcut(toolId: string): string | undefined {
+    return this.shortcuts.get(toolId);
+  }

-            let key = e.key.toLowerCase();
-
-            if (e.altKey && e.code) {
-                if (e.code.startsWith('Key')) {
-                    key = e.code.slice(3).toLowerCase();
-                } else if (e.code.startsWith('Digit')) {
-                    key = e.code.slice(5);
-                }
-            }
-
-            if (!['control', 'shift', 'alt', 'meta'].includes(key)) {
-                keys.push(key);
-            }
-
-            const combo = keys.join('+');
-
-            for (const [toolId, shortcut] of this.shortcuts.entries()) {
-                if (shortcut === combo) {
-                    e.preventDefault();
-                    e.stopPropagation();
-
-                    // Find the tool in categories
-                    const allTools = categories.flatMap(c => c.tools);
-                    const tool = allTools.find(t => this.getToolId(t) === toolId);
-
-                    if (tool && (tool as any).href) {
-                        // All tools now use href - navigate to the page
-                        const href = (tool as any).href;
-                        window.location.href = href.startsWith('/') ? href : `/${href}`;
-                    }
-                    return;
-                }
-            }
-        }, { capture: true });
+  static findToolByShortcut(key: string): string | undefined {
+    for (const [id, k] of this.shortcuts.entries()) {
+      if (k === key) {
+        return id;
+      }
    }
+    return undefined;
+  }
+
+  static setShortcut(toolId: string, key: string) {
+    if (key) {
+      this.shortcuts.set(toolId, key);
+    } else {
+      this.shortcuts.delete(toolId);
+    }
+    this.save();
+    window.dispatchEvent(new CustomEvent('shortcuts-updated'));
+  }
+
+  static getAllShortcuts(): Map<string, string> {
+    return this.shortcuts;
+  }
+
+  static exportSettings() {
+    // Create a map with all tools, defaulting to empty string if not set
+    const exportObj: Record<string, string> = {};
+
+    const allTools = categories.flatMap((c) => c.tools);
+
+    allTools.forEach((tool) => {
+      const toolId = this.getToolId(tool);
+      exportObj[toolId] = this.shortcuts.get(toolId) || '';
+    });
+
+    const dataStr =
+      'data:text/json;charset=utf-8,' +
+      encodeURIComponent(JSON.stringify(exportObj, null, 2));
+    const downloadAnchorNode = document.createElement('a');
+    downloadAnchorNode.setAttribute('href', dataStr);
+    downloadAnchorNode.setAttribute('download', 'bentopdf_shortcuts.json');
+    document.body.appendChild(downloadAnchorNode);
+    downloadAnchorNode.click();
+    downloadAnchorNode.remove();
+  }
+
+  static importSettings(jsonString: string): boolean {
+    try {
+      const parsed = JSON.parse(jsonString);
+      for (const key in parsed) {
+        if (typeof parsed[key] !== 'string') {
+          throw new Error('Invalid shortcut format');
+        }
+      }
+      this.shortcuts = new Map(Object.entries(parsed));
+      this.save();
+      window.dispatchEvent(new CustomEvent('shortcuts-updated'));
+      return true;
+    } catch (e) {
+      console.error('Import failed', e);
+      return false;
+    }
+  }
+
+  private static setupGlobalListener() {
+    window.addEventListener(
+      'keydown',
+      (e) => {
+        // Ignore if typing in an input or textarea
+        const target = e.target as HTMLElement;
+        if (
+          target.tagName === 'INPUT' ||
+          target.tagName === 'TEXTAREA' ||
+          target.isContentEditable
+        ) {
+          return;
+        }
+
+        // Build key string
+        const keys: string[] = [];
+        const isMac = navigator.userAgent.toUpperCase().includes('MAC');
+
+        // On Mac: metaKey = Command, ctrlKey = Control
+        // On Windows/Linux: metaKey is rare, ctrlKey = Ctrl
+        if (isMac) {
+          if (e.metaKey) keys.push('mod'); // Command on Mac
+          if (e.ctrlKey) keys.push('ctrl'); // Control on Mac (separate from Command)
+        } else {
+          if (e.ctrlKey || e.metaKey) keys.push('mod'); // Ctrl on Windows/Linux
+        }
+        if (e.altKey) keys.push('alt');
+        if (e.shiftKey) keys.push('shift');
+
+        let key = e.key.toLowerCase();
+
+        if (e.altKey && e.code) {
+          if (e.code.startsWith('Key')) {
+            key = e.code.slice(3).toLowerCase();
+          } else if (e.code.startsWith('Digit')) {
+            key = e.code.slice(5);
+          }
+        }
+
+        if (!['control', 'shift', 'alt', 'meta'].includes(key)) {
+          keys.push(key);
+        }
+
+        const combo = keys.join('+');
+
+        for (const [toolId, shortcut] of this.shortcuts.entries()) {
+          if (shortcut === combo) {
+            e.preventDefault();
+            e.stopPropagation();
+
+            // Find the tool in categories
+            const allTools = categories.flatMap((c) => c.tools);
+            const tool = allTools.find((t) => this.getToolId(t) === toolId);
+
+            if (tool && tool.href) {
+              const href = tool.href;
+              window.location.href = href.startsWith('/') ? href : `/${href}`;
+            }
+            return;
+          }
+        }
+      },
+      { capture: true }
+    );
+  }
 }
--- a/src/js/logic/split-pdf-page.ts
+++ b/src/js/logic/split-pdf-page.ts
@@ -16,7 +16,6 @@ import JSZip from 'jszip';
 import { PDFDocument as PDFLibDocument } from 'pdf-lib';
 import { loadPdfDocument } from '../utils/load-pdf-document.js';

-// @ts-ignore
 pdfjsLib.GlobalWorkerOptions.workerSrc = new URL(
  'pdfjs-dist/build/pdf.worker.min.mjs',
  import.meta.url
@@ -178,7 +177,7 @@ document.addEventListener('DOMContentLoaded', () => {
        imgContainer.append(img, pageNumDiv);
        wrapper.appendChild(imgContainer);

-        const handleSelection = (e: any) => {
+        const handleSelection = (e: Event) => {
          e.preventDefault();
          e.stopPropagation();

@@ -286,7 +285,7 @@ document.addEventListener('DOMContentLoaded', () => {
      let indicesToExtract: number[] = [];

      switch (splitMode) {
-        case 'range':
+        case 'range': {
          const pageRangeInput = (
            document.getElementById('page-range') as HTMLInputElement
          ).value;
@@ -331,7 +330,7 @@ document.addEventListener('DOMContentLoaded', () => {
              const group = rangeGroups[i];
              const newPdf = await PDFLibDocument.create();
              const copiedPages = await newPdf.copyPages(state.pdfDoc, group);
-              copiedPages.forEach((page: any) => newPdf.addPage(page));
+              copiedPages.forEach((page) => newPdf.addPage(page));
              const pdfBytes = await newPdf.save();

              const minPage = Math.min(...group) + 1;
@@ -357,8 +356,9 @@ document.addEventListener('DOMContentLoaded', () => {
            return;
          }
          break;
+        }

-        case 'even-odd':
+        case 'even-odd': {
          const choiceElement = document.querySelector(
            'input[name="even-odd-choice"]:checked'
          ) as HTMLInputElement;
@@ -371,6 +371,7 @@ document.addEventListener('DOMContentLoaded', () => {
            if (choice === 'odd' && (i + 1) % 2 !== 0) indicesToExtract.push(i);
          }
          break;
+        }
        case 'all':
          indicesToExtract = Array.from({ length: totalPages }, (_, i) => i);
          break;
@@ -379,8 +380,7 @@ document.addEventListener('DOMContentLoaded', () => {
            document.querySelectorAll('.page-thumbnail-wrapper.selected')
          ).map((el) => parseInt((el as HTMLElement).dataset.pageIndex || '0'));
          break;
-        case 'bookmarks':
-          // Check if CPDF is configured
+        case 'bookmarks': {
          if (!isCpdfAvailable()) {
            showWasmRequiredDialog('cpdf');
            hideLoader();
@@ -404,7 +404,7 @@ document.addEventListener('DOMContentLoaded', () => {

            if (bookmarkLevel === 'all' || level === parseInt(bookmarkLevel)) {
              if (page > 1 && !splitPages.includes(page - 1)) {
-                splitPages.push(page - 1); // Convert to 0-based index
+                splitPages.push(page - 1);
              }
            }
          }
@@ -434,7 +434,7 @@ document.addEventListener('DOMContentLoaded', () => {
              state.pdfDoc,
              pageIndices
            );
-            copiedPages.forEach((page: any) => newPdf.addPage(page));
+            copiedPages.forEach((page) => newPdf.addPage(page));
            const pdfBytes2 = await newPdf.save();
            zip.file(`split-${i + 1}.pdf`, pdfBytes2);
          }
@@ -446,8 +446,9 @@ document.addEventListener('DOMContentLoaded', () => {
            resetState();
          });
          return;
+        }

-        case 'n-times':
+        case 'n-times': {
          const nValue = parseInt(
            (document.getElementById('split-n-value') as HTMLInputElement)
              ?.value || '5'
@@ -470,7 +471,7 @@ document.addEventListener('DOMContentLoaded', () => {
              state.pdfDoc,
              pageIndices
            );
-            copiedPages.forEach((page: any) => newPdf.addPage(page));
+            copiedPages.forEach((page) => newPdf.addPage(page));
            const pdfBytes3 = await newPdf.save();
            zip2.file(`split-${i + 1}.pdf`, pdfBytes3);
          }
@@ -482,6 +483,7 @@ document.addEventListener('DOMContentLoaded', () => {
            resetState();
          });
          return;
+        }
      }

      const uniqueIndices = [...new Set(indicesToExtract)];
@@ -506,8 +508,7 @@ document.addEventListener('DOMContentLoaded', () => {
          ]);
          newPdf.addPage(copiedPage);
          const pdfBytes = await newPdf.save();
-          // @ts-ignore
-          zip.file(`page-${index + 1}.pdf`, pdfBytes);
+          zip.file(`page-${index + 1}.pdf`, new Uint8Array(pdfBytes));
        }
        const zipBlob = await zip.generateAsync({ type: 'blob' });
        downloadFile(zipBlob, 'split-pages.zip');
@@ -517,7 +518,7 @@ document.addEventListener('DOMContentLoaded', () => {
          state.pdfDoc,
          uniqueIndices as number[]
        );
-        copiedPages.forEach((page: any) => newPdf.addPage(page));
+        copiedPages.forEach((page) => newPdf.addPage(page));
        const pdfBytes = await newPdf.save();
        downloadFile(
          new Blob([new Uint8Array(pdfBytes)], { type: 'application/pdf' }),
@@ -532,11 +533,13 @@ document.addEventListener('DOMContentLoaded', () => {
      showAlert('Success', 'PDF split successfully!', 'success', () => {
        resetState();
      });
-    } catch (e: any) {
+    } catch (e: unknown) {
      console.error(e);
      showAlert(
        'Error',
-        e.message || 'Failed to split PDF. Please check your selection.'
+        e instanceof Error
+          ? e.message
+          : 'Failed to split PDF. Please check your selection.'
      );
    } finally {
      hideLoader();
--- a/src/js/logic/svg-to-pdf-page.ts
+++ b/src/js/logic/svg-to-pdf-page.ts
@@ -1,10 +1,6 @@
 import { createIcons, icons } from 'lucide';
 import { showAlert, showLoader, hideLoader } from '../ui.js';
-import {
-  downloadFile,
-  readFileAsArrayBuffer,
-  formatBytes,
-} from '../utils/helpers.js';
+import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { PDFDocument as PDFLibDocument } from 'pdf-lib';
 import {
  getSelectedQuality,
@@ -261,9 +257,9 @@ async function convertToPdf() {
    showAlert('Success', 'PDF created successfully!', 'success', () => {
      resetState();
    });
-  } catch (e: any) {
+  } catch (e: unknown) {
    console.error(e);
-    showAlert('Conversion Error', e.message);
+    showAlert('Conversion Error', e instanceof Error ? e.message : String(e));
  } finally {
    hideLoader();
  }
--- a/src/js/logic/table-of-contents.ts
+++ b/src/js/logic/table-of-contents.ts
@@ -36,15 +36,6 @@ const backToToolsBtn = document.getElementById(
  'back-to-tools'
 ) as HTMLButtonElement;

-interface GenerateTOCMessage {
-  command: 'generate-toc';
-  pdfData: ArrayBuffer;
-  title: string;
-  fontSize: number;
-  fontFamily: number;
-  addBookmark: boolean;
-}
-
 interface TOCSuccessResponse {
  status: 'success';
  pdfBytes: ArrayBuffer;
--- a/src/js/logic/txt-to-pdf-page.ts
+++ b/src/js/logic/txt-to-pdf-page.ts
@@ -1,9 +1,7 @@
 import { showLoader, hideLoader, showAlert } from '../ui.js';
 import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { createIcons, icons } from 'lucide';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
-import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import { loadPyMuPDF } from '../utils/pymupdf-loader.js';

 let files: File[] = [];
 let currentMode: 'upload' | 'text' = 'upload';
@@ -140,9 +138,12 @@ async function convert() {
        resetState();
      }
    );
-  } catch (e: any) {
+  } catch (e: unknown) {
    console.error('[TxtToPDF] Error:', e);
-    showAlert('Error', `Failed to convert text to PDF. ${e.message || ''}`);
+    showAlert(
+      'Error',
+      `Failed to convert text to PDF. ${e instanceof Error ? e.message : ''}`
+    );
  } finally {
    hideLoader();
  }
--- a/src/js/logic/validate-signature-pdf.ts
+++ b/src/js/logic/validate-signature-pdf.ts
@@ -100,7 +100,13 @@ export function validateSignature(
      Array.from(signature.contents)
    );
    const asn1 = forge.asn1.fromDer(binaryString);
-    const p7 = forge.pkcs7.messageFromAsn1(asn1) as any;
+    const p7 = forge.pkcs7.messageFromAsn1(
+      asn1
+    ) as forge.pkcs7.PkcsSignedData & {
+      rawCapture?: {
+        authenticatedAttributes?: Array<{ type: string; value: Date }>;
+      };
+    };

    if (!p7.certificates || p7.certificates.length === 0) {
      result.errorMessage = 'No certificates found in signature';
@@ -166,10 +172,8 @@ export function validateSignature(
    } else {
      // Try to extract from authenticated attributes
      try {
-        const signedData = p7 as any;
-        if (signedData.rawCapture?.authenticatedAttributes) {
-          // Look for signing time attribute
-          for (const attr of signedData.rawCapture.authenticatedAttributes) {
+        if (p7.rawCapture?.authenticatedAttributes) {
+          for (const attr of p7.rawCapture.authenticatedAttributes) {
            if (attr.type === forge.pki.oids.signingTime) {
              result.signatureDate = attr.value;
              break;
@@ -185,7 +189,7 @@ export function validateSignature(
    }

    if (signature.byteRange && signature.byteRange.length === 4) {
-      const [start1, len1, start2, len2] = signature.byteRange;
+      const [, len1, start2, len2] = signature.byteRange;
      const totalCovered = len1 + len2;
      const expectedEnd = start2 + len2;

--- a/src/js/logic/webp-to-pdf-page.ts
+++ b/src/js/logic/webp-to-pdf-page.ts
@@ -160,9 +160,13 @@ function updateUI() {
  }
 }

-function sanitizeImageAsJpeg(imageBytes: any) {
+function sanitizeImageAsJpeg(imageBytes: Uint8Array | ArrayBuffer) {
  return new Promise((resolve, reject) => {
-    const blob = new Blob([imageBytes]);
+    const blob = new Blob([
+      imageBytes instanceof Uint8Array
+        ? new Uint8Array(imageBytes)
+        : imageBytes,
+    ]);
    const imageUrl = URL.createObjectURL(blob);
    const img = new Image();

@@ -248,9 +252,9 @@ async function convertToPdf() {
    showAlert('Success', 'PDF created successfully!', 'success', () => {
      resetState();
    });
-  } catch (e: any) {
+  } catch (e: unknown) {
    console.error(e);
-    showAlert('Conversion Error', e.message);
+    showAlert('Conversion Error', e instanceof Error ? e.message : String(e));
  } finally {
    hideLoader();
  }
--- a/src/js/logic/word-to-pdf-page.ts
+++ b/src/js/logic/word-to-pdf-page.ts
@@ -1,9 +1,5 @@
 import { showLoader, hideLoader, showAlert } from '../ui.js';
-import {
-  downloadFile,
-  readFileAsArrayBuffer,
-  formatBytes,
-} from '../utils/helpers.js';
+import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';
 import {
@@ -187,13 +183,16 @@ document.addEventListener('DOMContentLoaded', () => {
          () => resetState()
        );
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      console.error('[Word2PDF] ERROR:', e);
-      console.error('[Word2PDF] Error stack:', e.stack);
+      console.error(
+        '[Word2PDF] Error stack:',
+        e instanceof Error ? e.stack : ''
+      );
      hideLoader();
      showAlert(
        'Error',
-        `An error occurred during conversion. Error: ${e.message}`
+        `An error occurred during conversion. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };
--- a/src/js/logic/word-to-pdf.ts
+++ b/src/js/logic/word-to-pdf.ts
@@ -15,13 +15,18 @@ export async function wordToPdf() {
  try {
    const mammothOptions = {
      // @ts-expect-error TS(2304) FIXME: Cannot find name 'mammoth'.
-      convertImage: mammoth.images.inline((element: any) => {
-        return element.read('base64').then((imageBuffer: any) => {
-          return {
-            src: `data:${element.contentType};base64,${imageBuffer}`,
-          };
-        });
-      }),
+      convertImage: mammoth.images.inline(
+        (element: {
+          read: (encoding: string) => Promise<string>;
+          contentType: string;
+        }) => {
+          return element.read('base64').then((imageBuffer: string) => {
+            return {
+              src: `data:${element.contentType};base64,${imageBuffer}`,
+            };
+          });
+        }
+      ),
    };
    const arrayBuffer = await readFileAsArrayBuffer(file);
    // @ts-expect-error TS(2304) FIXME: Cannot find name 'mammoth'.
@@ -77,7 +82,18 @@ export async function wordToPdf() {
      });

      await doc.html(previewContent, {
-        callback: function (doc: any) {
+        callback: function (doc: {
+          internal: { pageSize: { getHeight: () => number } };
+          link: (
+            x: number,
+            y: number,
+            w: number,
+            h: number,
+            opts: { url: string }
+          ) => void;
+          save: (name: string) => void;
+          setPage: (page: number) => void;
+        }) {
          const links = previewContent.querySelectorAll('a');
          const pageHeight = doc.internal.pageSize.getHeight();
          const containerRect = previewContent.getBoundingClientRect(); // Get container's position
--- a/src/js/logic/wpd-to-pdf-page.ts
+++ b/src/js/logic/wpd-to-pdf-page.ts
@@ -150,12 +150,12 @@ document.addEventListener('DOMContentLoaded', () => {
          () => resetState()
        );
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      hideLoader();
      console.error(`[${FILETYPE_NAME}ToPDF] Error:`, e);
      showAlert(
        'Error',
-        `An error occurred during conversion. Error: ${e.message}`
+        `An error occurred during conversion. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };
--- a/src/js/logic/wps-to-pdf-page.ts
+++ b/src/js/logic/wps-to-pdf-page.ts
@@ -150,12 +150,12 @@ document.addEventListener('DOMContentLoaded', () => {
          () => resetState()
        );
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      hideLoader();
      console.error(`[${FILETYPE_NAME}ToPDF] Error:`, e);
      showAlert(
        'Error',
-        `An error occurred during conversion. Error: ${e.message}`
+        `An error occurred during conversion. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };
--- a/src/js/logic/xps-to-pdf-page.ts
+++ b/src/js/logic/xps-to-pdf-page.ts
@@ -2,9 +2,7 @@ import { showLoader, hideLoader, showAlert } from '../ui.js';
 import { downloadFile, formatBytes } from '../utils/helpers.js';
 import { state } from '../state.js';
 import { createIcons, icons } from 'lucide';
-import { isWasmAvailable, getWasmBaseUrl } from '../config/wasm-cdn-config.js';
-import { showWasmRequiredDialog } from '../utils/wasm-provider.js';
-import { loadPyMuPDF, isPyMuPDFAvailable } from '../utils/pymupdf-loader.js';
+import { loadPyMuPDF } from '../utils/pymupdf-loader.js';
 import { deduplicateFileName } from '../utils/deduplicate-filename.js';

 const FILETYPE = 'xps';
@@ -147,12 +145,12 @@ document.addEventListener('DOMContentLoaded', () => {
          () => resetState()
        );
      }
-    } catch (e: any) {
+    } catch (e: unknown) {
      console.error(`[${TOOL_NAME}2PDF] ERROR:`, e);
      hideLoader();
      showAlert(
        'Error',
-        `An error occurred during conversion. Error: ${e.message}`
+        `An error occurred during conversion. Error: ${e instanceof Error ? e.message : String(e)}`
      );
    }
  };