Add localization for PDF to WebP conversion alerts and loader messages

public/locales/de/tools.json

@@ -240,7 +240,18 @@
     "name": "PDF zu WebP",
     "subtitle": "Jede PDF-Seite in ein WebP-Bild konvertieren.",
     "imageQuality": "Bildqualität",
-    "imageQualityExplanation": "Höhere Qualität = größere Dateigröße"
+    "imageQualityExplanation": "Höhere Qualität = größere Dateigröße",
+    "alert": {
+      "invalidFile": "Ungültige Datei",
+      "invalidFileExplanation": "Bitte wähle eine PDF Datei aus.",
+      "noFile": "Keine Datei",
+      "noFileExplanation": "Bitte lade zuerst eine PDF-Datei hoch.",
+      "conversionSuccess": "PDF erfolgreich in WebPs konvertiert!",
+      "conversionError": "Konvertierung in WebP fehlgeschlagen. Die Datei könnte beschädigt sein."
+    },
+    "loader": {
+      "converting": "Wird in WebP konvertiert..."
+    }
   },
   "pdfToBmp": {
     "name": "PDF zu BMP",

public/locales/en/tools.json

@@ -240,7 +240,18 @@
     "name": "PDF to WebP",
     "subtitle": "Convert each PDF page into a WebP image.",
     "imageQuality": "Image Quality",
-    "imageQualityExplanation": "Higher quality = larger file size"
+    "imageQualityExplanation": "Higher quality = larger file size",
+    "alert": {
+      "invalidFile": "Invalid File",
+      "invalidFileExplanation": "Please upload a PDF file.",
+      "noFile": "No File",
+      "noFileExplanation": "Please upload a PDF file first.",
+      "conversionSuccess": "PDF converted to WebPs successfully!",
+      "conversionError": "Failed to convert PDF to WebP. The file might be corrupted."
+    },
+    "loader": {
+      "converting": "Converting to WebP..."
+    }
   },
   "pdfToBmp": {
     "name": "PDF to BMP",

src/js/logic/pdf-to-webp-page.ts

@@ -97,10 +97,13 @@ const resetState = () => {
 
 async function convert() {
   if (files.length === 0) {
-    showAlert('No File', 'Please upload a PDF file first.');
+    showAlert(
+      t('tools:pdfToWebp.alert.noFile'),
+      t('tools:pdfToWebp.alert.noFileExplanation')
+    );
     return;
   }
-  showLoader('Converting to WebP...');
+  showLoader(t('tools:pdfToWebp.loader.converting'));
   try {
     const pdf = await getPDFDocument(await readFileAsArrayBuffer(files[0]))
       .promise;
@@ -129,8 +132,8 @@ async function convert() {
     }
 
     showAlert(
-      'Success',
+      t('common.success'),
-      'PDF converted to WebPs successfully!',
+      t('tools:pdfToWebp.alert.conversionSuccess'),
       'success',
       () => {
         resetState();
@@ -138,10 +141,7 @@ async function convert() {
     );
   } catch (e) {
     console.error(e);
-    showAlert(
+    showAlert(t('common.error'), t('tools:pdfToWebp.alert.conversionError'));
-      'Error',
-      'Failed to convert PDF to WebP. The file might be corrupted.'
-    );
   } finally {
     hideLoader();
   }
@@ -198,7 +198,10 @@ document.addEventListener('DOMContentLoaded', () => {
     );
 
     if (validFiles.length === 0) {
-      showAlert('Invalid File', 'Please upload a PDF file.');
+      showAlert(
+        t('tools:pdfToWebp.alert.invalidFile'),
+        t('tools:pdfToWebp.alert.invalidFileExplanation')
+      );
       return;
     }