Merge pull request #256 from Cxllxc/main

(Bug/Feature)Add Chinese language support and fix Multi Tool localization

index.html

@@ -398,8 +398,8 @@
           <div class="mb-4 p-3 bg-indigo-900/20 border border-indigo-500/30 rounded-lg flex items-start gap-3">
             <i data-lucide="info" class="w-5 h-5 text-indigo-400 flex-shrink-0 mt-0.5"></i>
             <p class="text-sm text-indigo-200">
-              Press and hold keys to set a shortcut. Changes are <strong>auto-saved</strong>.
-              <br><span class="text-yellow-300">⚠️ Avoid common browser shortcuts (Cmd/Ctrl+W, Cmd/Ctrl+T, Cmd/Ctrl+N
+              <span data-i18n="settings.shortcutsInfo">Press and hold keys to set a shortcut. Changes are <strong>auto-saved</strong>.</span>
+              <br><span class="text-yellow-300" data-i18n="settings.shortcutsWarning">⚠️ Avoid common browser shortcuts (Cmd/Ctrl+W, Cmd/Ctrl+T, Cmd/Ctrl+N
                 etc.) as they
                 may not work reliably.</span>
             </p>

nginx.conf

@@ -23,7 +23,7 @@ http {
         root /usr/share/nginx/html;
         index index.html;
         
-        rewrite ^/(en|de)/(.*)$ /$2 last;
+        rewrite ^/(en|de|zh)/(.*)$ /$2 last;
 
         location / {
             try_files $uri $uri/ /index.html;

public/locales/de/common.json

@@ -271,5 +271,48 @@
     "licensing": {
         "title": "Lizenzierung für",
         "subtitle": "Wählen Sie die Lizenz, die Ihren Anforderungen entspricht."
+    },
+    "multiTool": {
+        "uploadPdfs": "PDFs hochladen",
+        "upload": "Hochladen",
+        "addBlankPage": "Leere Seite hinzufügen",
+        "edit": "Bearbeiten:",
+        "undo": "Rückgängig",
+        "redo": "Wiederholen",
+        "reset": "Zurücksetzen",
+        "selection": "Auswahl:",
+        "selectAll": "Alles auswählen",
+        "deselectAll": "Auswahl aufheben",
+        "rotate": "Drehen:",
+        "rotateLeft": "Links",
+        "rotateRight": "Rechts",
+        "transform": "Transformieren:",
+        "duplicate": "Duplizieren",
+        "split": "Teilen",
+        "clear": "Löschen:",
+        "delete": "Entfernen",
+        "download": "Download:",
+        "downloadSelected": "Auswahl herunterladen",
+        "exportPdf": "PDF exportieren",
+        "uploadPdfFiles": "PDF-Dateien hochladen",
+        "dragAndDrop": "PDF-Dateien hierhin ziehen oder klicken zum Auswählen",
+        "selectFiles": "Dateien auswählen",
+        "renderingPages": "Seiten werden gerendert...",
+        "actions": {
+            "duplicatePage": "Diese Seite duplizieren",
+            "deletePage": "Diese Seite löschen",
+            "insertPdf": "PDF nach dieser Seite einfügen",
+            "toggleSplit": "Trennung nach dieser Seite umschalten"
+        },
+        "pleaseWait": "Bitte warten",
+        "pagesRendering": "Seiten werden noch gerendert. Bitte warten...",
+        "noPagesSelected": "Keine Seiten ausgewählt",
+        "selectOnePage": "Bitte wählen Sie mindestens eine Seite zum Herunterladen aus.",
+        "noPages": "Keine Seiten",
+        "noPagesToExport": "Keine Seiten zum Exportieren vorhanden.",
+        "renderingTitle": "Seiten-Vorschau wird gerendert",
+        "errorRendering": "Fehler beim Rendern der Seitenvorschau",
+        "error": "Fehler",
+        "failedToLoad": "Laden fehlgeschlagen"
     }
 }

public/locales/en/common.json

@@ -271,5 +271,48 @@
     "licensing": {
         "title": "Licensing for",
         "subtitle": "Choose the license that fits your needs."
+    },
+    "multiTool": {
+        "uploadPdfs": "Upload PDFs",
+        "upload": "Upload",
+        "addBlankPage": "Add Blank Page",
+        "edit": "Edit:",
+        "undo": "Undo",
+        "redo": "Redo",
+        "reset": "Reset",
+        "selection": "Selection:",
+        "selectAll": "Select All",
+        "deselectAll": "Deselect All",
+        "rotate": "Rotate:",
+        "rotateLeft": "Left",
+        "rotateRight": "Right",
+        "transform": "Transform:",
+        "duplicate": "Duplicate",
+        "split": "Split",
+        "clear": "Clear:",
+        "delete": "Delete",
+        "download": "Download:",
+        "downloadSelected": "Download Selected",
+        "exportPdf": "Export PDF",
+        "uploadPdfFiles": "Upload PDF Files",
+        "dragAndDrop": "Drag and drop PDF files here, or click to select",
+        "selectFiles": "Select Files",
+        "renderingPages": "Rendering pages...",
+        "actions": {
+            "duplicatePage": "Duplicate this page",
+            "deletePage": "Delete this page",
+            "insertPdf": "Insert PDF after this page",
+            "toggleSplit": "Toggle split after this page"
+        },
+        "pleaseWait": "Please Wait",
+        "pagesRendering": "Pages are still being rendered. Please wait...",
+        "noPagesSelected": "No Pages Selected",
+        "selectOnePage": "Please select at least one page to download.",
+        "noPages": "No Pages",
+        "noPagesToExport": "There are no pages to export.",
+        "renderingTitle": "Rendering page previews",
+        "errorRendering": "Failed to render page thumbnails",
+        "error": "Error",
+        "failedToLoad": "Failed to load"
     }
 }

public/locales/zh/common.json

@@ -0,0 +1,318 @@
+{
+    "nav": {
+        "home": "首页",
+        "about": "关于我们",
+        "contact": "联系我们",
+        "licensing": "许可",
+        "allTools": "所有工具",
+        "openMainMenu": "打开主菜单",
+        "language": "语言"
+    },
+    "hero": {
+        "title": "专为隐私打造的",
+        "pdfToolkit": "PDF 工具箱",
+        "builtForPrivacy": " ",
+        "noSignups": "无需注册",
+        "unlimitedUse": "无限使用",
+        "worksOffline": "离线可用",
+        "startUsing": "立即开始"
+    },
+    "usedBy": {
+        "title": "被众多公司和个人信赖，包括"
+    },
+    "features": {
+        "title": "为什么选择",
+        "bentoPdf": "BentoPDF?",
+        "noSignup": {
+            "title": "无需注册",
+            "description": "即刻开始，无需账户或电子邮件。"
+        },
+        "noUploads": {
+            "title": "无需上传",
+            "description": "100% 客户端处理，您的文件从未离开您的设备。"
+        },
+        "foreverFree": {
+            "title": "永久免费",
+            "description": "所有工具免费，无试用期，无付费墙。"
+        },
+        "noLimits": {
+            "title": "无限制",
+            "description": "随心使用，无任何隐形限制。"
+        },
+        "batchProcessing": {
+            "title": "批量处理",
+            "description": "一次处理无限数量的 PDF 文件。"
+        },
+        "lightningFast": {
+            "title": "极速处理",
+            "description": "瞬间处理 PDF，无需等待。"
+        }
+    },
+    "tools": {
+        "title": "开始使用",
+        "toolsLabel": "工具",
+        "subtitle": "点击工具以打开文件上传",
+        "searchPlaceholder": "搜索工具 (例如 '合并', '分割'...)",
+        "backToTools": "返回工具列表"
+    },
+    "upload": {
+        "clickToSelect": "点击选择文件",
+        "orDragAndDrop": "或将文件拖放到此处",
+        "pdfOrImages": "PDF 或图片",
+        "filesNeverLeave": "您的文件从未离开您的设备。",
+        "addMore": "添加更多文件",
+        "clearAll": "清空所有"
+    },
+    "loader": {
+        "processing": "处理中..."
+    },
+    "alert": {
+        "title": "提示",
+        "ok": "确定"
+    },
+    "preview": {
+        "title": "文档预览",
+        "downloadAsPdf": "下载 PDF",
+        "close": "关闭"
+    },
+    "settings": {
+        "title": "设置",
+        "shortcuts": "快捷键",
+        "preferences": "偏好设置",
+        "displayPreferences": "显示设置",
+        "searchShortcuts": "搜索快捷键...",
+        "shortcutsInfo": "按下并按住按键以设置快捷键。更改将自动保存。",
+        "shortcutsWarning": "⚠️ 避免使用通用的浏览器快捷键 (Cmd/Ctrl+W, Cmd/Ctrl+T, Cmd/Ctrl+N 等)，因为它们可能无法稳定工作。",
+        "import": "导入",
+        "export": "导出",
+        "resetToDefaults": "恢复默认",
+        "fullWidthMode": "全宽模式",
+        "fullWidthDescription": "使用全屏宽度展示所有工具，而非居中显示",
+        "settingsAutoSaved": "设置已自动保存",
+        "clickToSet": "点击设置",
+        "pressKeys": "按下按键...",
+        "warnings": {
+            "alreadyInUse": "快捷键已被使用",
+            "assignedTo": "已分配给：",
+            "chooseDifferent": "请选择其他快捷键。",
+            "reserved": "保留快捷键警告",
+            "commonlyUsed": "通常用于：",
+            "unreliable": "此快捷键可能无法稳定工作，或与浏览器/系统快捷键冲突。",
+            "useAnyway": "仍要使用吗？",
+            "resetTitle": "重置快捷键",
+            "resetMessage": "确定要将所有快捷键重置为默认值吗？<br><br>此操作无法撤销。",
+            "importSuccessTitle": "导入成功",
+            "importSuccessMessage": "快捷键导入成功！",
+            "importFailTitle": "导入失败",
+            "importFailMessage": "导入快捷键失败。文件格式无效。"
+        }
+    },
+    "warning": {
+        "title": "警告",
+        "cancel": "取消",
+        "proceed": "继续"
+    },
+    "compliance": {
+        "title": "您的数据从未离开您的设备",
+        "weKeep": "我们会保持",
+        "yourInfoSafe": "您的信息安全",
+        "byFollowingStandards": "，遵循全球安全标准。",
+        "processingLocal": "所有处理都在您的设备上本地进行。",
+        "gdpr": {
+            "title": "GDPR 合规",
+            "description": "保护欧盟境内个人的个人数据和隐私。"
+        },
+        "ccpa": {
+            "title": "CCPA 合规",
+            "description": "赋予加州居民对其个人信息的收集、使用和共享的权利。"
+        },
+        "hipaa": {
+            "title": "HIPAA 合规",
+            "description": "制定美国医疗系统中处理敏感健康信息的保障措施。"
+        }
+    },
+    "faq": {
+        "title": "常见",
+        "questions": "问题",
+        "isFree": {
+            "question": "BentoPDF 真的免费吗？",
+            "answer": "是的，完全免费。BentoPDF 上的所有工具均可 100% 免费使用，没有文件限制，无需注册，也没有水印。我们相信每个人都应该能够使用简单、强大的 PDF 工具，而无需通过付费墙。"
+        },
+        "areFilesSecure": {
+            "question": "我的文件安全吗？它们在哪里处理？",
+            "answer": "您的文件非常安全，因为它们从未离开您的电脑。所有处理都直接在您的网络浏览器（客户端）中进行。我们从不将您的文件上传到服务器，因此您可以对文档保持完全的隐私和控制。"
+        },
+        "platforms": {
+            "question": "它适用于 Mac、Windows 和手机吗？",
+            "answer": "是的！由于 BentoPDF 完全在您的浏览器中运行，因此它适用于任何带有现代网络浏览器的操作系统，包括 Windows、macOS、Linux、iOS 和 Android。"
+        },
+        "gdprCompliant": {
+            "question": "BentoPDF 符合 GDPR 吗？",
+            "answer": "是的。BentoPDF 完全符合 GDPR。由于所有文件处理都在您的浏览器中本地进行，并且我们从不收集或将您的文件传输到任何服务器，因此我们无法访问您的数据。这确保您始终掌控您的文档。"
+        },
+        "dataStorage": {
+            "question": "你们会存储或跟踪我的任何文件吗？",
+            "answer": "不。我们从不存储、跟踪或记录您的文件。您在 BentoPDF 上所做的所有操作都在您的浏览器内存中进行，并在您关闭页面后消失。没有上传，没有历史记录，也没有涉及服务器。"
+        },
+        "different": {
+            "question": "BentoPDF 与其他 PDF 工具有何不同？",
+            "answer": "大多数 PDF 工具将您的文件上传到服务器进行处理。BentoPDF 从不这样做。我们使用安全、现代的网络技术直接在您的浏览器中处理您的文件。这意味着更快的性能、更强的隐私和完全的安心。"
+        },
+        "browserBased": {
+            "question": "基于浏览器的处理如何保护我的安全？",
+            "answer": "通过完全在您的浏览器内部运行，BentoPDF 确保您的文件从未离开您的设备。这消除了服务器黑客攻击、数据泄露或未经授权访问的风险。您的文件始终属于您。"
+        },
+        "analytics": {
+            "question": "你们使用 Cookie 或分析来跟踪我吗？",
+            "answer": "我们关心您的隐私。BentoPDF 不会跟踪个人信息。我们仅使用 Simple Analytics 查看匿名访问计数。这意味着我们可以知道有多少用户访问我们的网站，但我们永远不知道您是谁。Simple Analytics 完全符合 GDPR 并尊重您的隐私。"
+        }
+    },
+    "testimonials": {
+        "title": "我们的",
+        "users": "用户",
+        "say": "评价"
+    },
+    "support": {
+        "title": "喜欢这个项目？",
+        "description": "BentoPDF 是一个充满激情的项目，旨在为每个人提供免费、私密且强大的 PDF 工具箱。如果您觉得它有用，请考虑支持它的开发。每一杯咖啡都是莫大的支持！",
+        "buyMeCoffee": "请我喝杯咖啡"
+    },
+    "footer": {
+        "copyright": "© 2025 BentoPDF. 保留所有权利。",
+        "version": "版本",
+        "company": "公司",
+        "aboutUs": "关于我们",
+        "faqLink": "常见问题",
+        "contactUs": "联系我们",
+        "legal": "法律",
+        "termsAndConditions": "服务条款",
+        "privacyPolicy": "隐私政策",
+        "followUs": "关注我们"
+    },
+    "merge": {
+        "title": "合并 PDF",
+        "description": "合并整个文件，或选择特定页面合并到新文档中。",
+        "fileMode": "文件模式",
+        "pageMode": "页面模式",
+        "howItWorks": "使用说明：",
+        "fileModeInstructions": [
+            "点击并拖动图标以更改文件的顺序。",
+            "在每个文件的 '页码' 框中，您可以指定范围（例如 '1-3, 5'）以仅合并这些页面。",
+            "将 '页码' 框留空以包含该文件的所有页面。"
+        ],
+        "pageModeInstructions": [
+            "您上传的 PDF 的所有页面显示在下方。",
+            "只需拖放单个页面缩略图，即可为您新文件对页面进行排序。"
+        ],
+        "mergePdfs": "合并 PDF"
+    },
+    "common": {
+        "page": "页",
+        "pages": "页",
+        "of": " / ",
+        "download": "下载",
+        "cancel": "取消",
+        "save": "保存",
+        "delete": "删除",
+        "edit": "编辑",
+        "add": "添加",
+        "remove": "移除",
+        "loading": "加载中...",
+        "error": "错误",
+        "success": "成功",
+        "file": "文件",
+        "files": "文件"
+    },
+    "about": {
+        "hero": {
+            "title": "我们相信 PDF 工具应该是",
+            "subtitle": "快速、私密且免费的。",
+            "noCompromises": "绝不妥协。"
+        },
+        "mission": {
+            "title": "我们的使命",
+            "description": "提供最全面的 PDF 工具箱，尊重您的隐私，且永不收费。我们相信基本的文档工具应该对所有人、在任何地方都触手可及，没有任何障碍。"
+        },
+        "philosophy": {
+            "label": "我们的核心理念",
+            "title": "隐私至上。始终如一。",
+            "description": "在数据被商品化的时代，我们采取不同的方式。BentoPDF 工具的所有处理都在您的浏览器本地进行。这意味着您的文件从未接触我们的服务器，我们从不查看您的文档，也不跟踪您的操作。您的文档保持绝对的私密性。这不仅是一项功能；这是我们的基石。"
+        },
+        "whyBentopdf": {
+            "title": "为什么选择",
+            "speed": {
+                "title": "为速度而生",
+                "description": "无需等待上传或从服务器下载。通过使用 WebAssembly 等现代网络技术直接在您的浏览器中处理文件，我们为所有工具提供了无与伦比的速度。"
+            },
+            "free": {
+                "title": "完全免费",
+                "description": "无试用，无订阅，无隐藏费用，也没有被锁定的 '高级' 功能。我们相信强大的 PDF 工具应该是一种公共设施，而不是盈利中心。"
+            },
+            "noAccount": {
+                "title": "无需账户",
+                "description": "立即开始使用任何工具。我们不需要您的电子邮件、密码或任何个人信息。您的工作流程应该是无摩擦且匿名的。"
+            },
+            "openSource": {
+                "title": "开源精神",
+                "description": "以透明度为核心构建。我们利用了像 PDF-lib 和 PDF.js 这样优秀的开源库，并相信社区驱动的力量能使强大的工具惠及每一个人。"
+            }
+        },
+        "cta": {
+            "title": "准备好开始了吗？",
+            "description": "加入成千上万信任 BentoPDF 满足日常文档需求的用户。体验隐私和性能带来的不同。",
+            "button": "探索所有工具"
+        }
+    },
+    "contact": {
+        "title": "联系我们",
+        "subtitle": "我们很乐意听到您的声音。无论您有问题、反馈还是功能请求，请随时联系我们。",
+        "email": "您可以直接通过电子邮件联系我们："
+    },
+    "licensing": {
+        "title": "许可适用",
+        "subtitle": "选择适合您需求的许可。"
+    },
+    "multiTool": {
+        "uploadPdfs": "上传 PDF",
+        "upload": "上传",
+        "addBlankPage": "添加空白页",
+        "edit": "编辑:",
+        "undo": "撤销",
+        "redo": "重做",
+        "reset": "重置",
+        "selection": "选择:",
+        "selectAll": "全选",
+        "deselectAll": "取消全选",
+        "rotate": "旋转:",
+        "rotateLeft": "向左",
+        "rotateRight": "向右",
+        "transform": "变换:",
+        "duplicate": "复制",
+        "split": "拆分",
+        "clear": "清除:",
+        "delete": "删除",
+        "download": "下载:",
+        "downloadSelected": "下载选中",
+        "exportPdf": "导出 PDF",
+        "uploadPdfFiles": "上传 PDF 文件",
+        "dragAndDrop": "将 PDF 文件拖放到此处，或点击选择",
+        "selectFiles": "选择文件",
+        "renderingPages": "正在渲染页面...",
+        "actions": {
+            "duplicatePage": "复制此页",
+            "deletePage": "删除此页",
+            "insertPdf": "在此页后插入 PDF",
+            "toggleSplit": "在此页后切换拆分"
+        },
+        "pleaseWait": "请稍候",
+        "pagesRendering": "页面正在渲染中，请稍候...",
+        "noPagesSelected": "未选择页面",
+        "selectOnePage": "请至少选择一页以进行下载。",
+        "noPages": "没有页面",
+        "noPagesToExport": "没有可导出的页面。",
+        "renderingTitle": "正在渲染页面预览",
+        "errorRendering": "渲染页面缩略图失败",
+        "error": "错误",
+        "failedToLoad": "加载失败"
+    }
+}

public/locales/zh/tools.json

@@ -0,0 +1,279 @@
+{
+    "categories": {
+        "popularTools": "热门工具",
+        "editAnnotate": "编辑与注释",
+        "convertToPdf": "转换为 PDF",
+        "convertFromPdf": "从 PDF 转换",
+        "organizeManage": "组织与管理",
+        "optimizeRepair": "优化与修复",
+        "securePdf": "安全 PDF"
+    },
+    "pdfMultiTool": {
+        "name": "PDF 多功能工具",
+        "subtitle": "在一个统一的界面中合并、分割、组织、删除、旋转、添加空白页、提取和复制。"
+    },
+    "mergePdf": {
+        "name": "合并 PDF",
+        "subtitle": "将多个 PDF 合并为一个文件。保留书签。"
+    },
+    "splitPdf": {
+        "name": "分割 PDF",
+        "subtitle": "将指定范围的页面提取到新 PDF 中。"
+    },
+    "compressPdf": {
+        "name": "压缩 PDF",
+        "subtitle": "减小您的 PDF 文件大小。"
+    },
+    "pdfEditor": {
+        "name": "PDF 编辑器",
+        "subtitle": "注释、高亮、涂黑、评论、添加形状/图片、搜索和查看 PDF。"
+    },
+    "jpgToPdf": {
+        "name": "JPG 转 PDF",
+        "subtitle": "从一张或多张 JPG 图片创建 PDF。"
+    },
+    "signPdf": {
+        "name": "签署 PDF",
+        "subtitle": "绘制、键入或上传您的签名。"
+    },
+    "cropPdf": {
+        "name": "裁剪 PDF",
+        "subtitle": "修剪 PDF 中每一页的边距。"
+    },
+    "extractPages": {
+        "name": "提取页面",
+        "subtitle": "将选定的页面保存为新文件。"
+    },
+    "duplicateOrganize": {
+        "name": "复制与组织",
+        "subtitle": "复制、重新排序和删除页面。"
+    },
+    "deletePages": {
+        "name": "删除页面",
+        "subtitle": "自您的文档中移除特定页面。"
+    },
+    "editBookmarks": {
+        "name": "编辑书签",
+        "subtitle": "添加、编辑、导入、删除和提取 PDF 书签。"
+    },
+    "tableOfContents": {
+        "name": "目录",
+        "subtitle": "根据 PDF 书签生成目录页。"
+    },
+    "pageNumbers": {
+        "name": "页码",
+        "subtitle": "将页码插入到您的文档中。"
+    },
+    "addWatermark": {
+        "name": "添加水印",
+        "subtitle": "在您的 PDF 页面上添加文字或图片水印。"
+    },
+    "headerFooter": {
+        "name": "页眉和页脚",
+        "subtitle": "在页面顶部和底部添加文字。"
+    },
+    "invertColors": {
+        "name": "反转颜色",
+        "subtitle": "创建您的 PDF 的“暗黑模式”版本。"
+    },
+    "backgroundColor": {
+        "name": "背景颜色",
+        "subtitle": "更改您的 PDF 的背景颜色。"
+    },
+    "changeTextColor": {
+        "name": "更改文本颜色",
+        "subtitle": "更改您 PDF 中文本的颜色。"
+    },
+    "addStamps": {
+        "name": "添加印章",
+        "subtitle": "使用注释工具栏向您的 PDF 添加图片印章。"
+    },
+    "removeAnnotations": {
+        "name": "移除注释",
+        "subtitle": "移除评论、高亮和链接。"
+    },
+    "pdfFormFiller": {
+        "name": "PDF 表单填写器",
+        "subtitle": "直接在浏览器中填写表单。也支持 XFA 表单。"
+    },
+    "createPdfForm": {
+        "name": "创建 PDF 表单",
+        "subtitle": "使用拖放文本字段创建可填写的 PDF 表单。"
+    },
+    "removeBlankPages": {
+        "name": "移除空白页",
+        "subtitle": "自动检测并删除空白页。"
+    },
+    "imageToPdf": {
+        "name": "图片转 PDF",
+        "subtitle": "将 JPG, PNG, WebP, BMP, TIFF, SVG, HEIC 转换为 PDF。"
+    },
+    "pngToPdf": {
+        "name": "PNG 转 PDF",
+        "subtitle": "从一张或多张 PNG 图片创建 PDF。"
+    },
+    "webpToPdf": {
+        "name": "WebP 转 PDF",
+        "subtitle": "从一张或多张 WebP 图片创建 PDF。"
+    },
+    "svgToPdf": {
+        "name": "SVG 转 PDF",
+        "subtitle": "从一张或多张 SVG 图片创建 PDF。"
+    },
+    "bmpToPdf": {
+        "name": "BMP 转 PDF",
+        "subtitle": "从一张或多张 BMP 图片创建 PDF。"
+    },
+    "heicToPdf": {
+        "name": "HEIC 转 PDF",
+        "subtitle": "从一张或多张 HEIC 图片创建 PDF。"
+    },
+    "tiffToPdf": {
+        "name": "TIFF 转 PDF",
+        "subtitle": "从一张或多张 TIFF 图片创建 PDF。"
+    },
+    "textToPdf": {
+        "name": "文本转 PDF",
+        "subtitle": "将纯文本文件转换为 PDF。"
+    },
+    "jsonToPdf": {
+        "name": "JSON 转 PDF",
+        "subtitle": "将 JSON 文件转换为 PDF 格式。"
+    },
+    "pdfToJpg": {
+        "name": "PDF 转 JPG",
+        "subtitle": "将每一页 PDF 转换为 JPG 图片。"
+    },
+    "pdfToPng": {
+        "name": "PDF 转 PNG",
+        "subtitle": "将每一页 PDF 转换为 PNG 图片。"
+    },
+    "pdfToWebp": {
+        "name": "PDF 转 WebP",
+        "subtitle": "将每一页 PDF 转换为 WebP 图片。"
+    },
+    "pdfToBmp": {
+        "name": "PDF 转 BMP",
+        "subtitle": "将每一页 PDF 转换为 BMP 图片。"
+    },
+    "pdfToTiff": {
+        "name": "PDF 转 TIFF",
+        "subtitle": "将每一页 PDF 转换为 TIFF 图片。"
+    },
+    "pdfToGreyscale": {
+        "name": "PDF 转 灰度",
+        "subtitle": "将所有颜色转换为黑白。"
+    },
+    "pdfToJson": {
+        "name": "PDF 转 JSON",
+        "subtitle": "将 PDF 文件转换为 JSON 格式。"
+    },
+    "ocrPdf": {
+        "name": "OCR PDF",
+        "subtitle": "使 PDF 可搜索和可复制。"
+    },
+    "alternateMix": {
+        "name": "交替混合页面",
+        "subtitle": "通过交替每个 PDF 的页面来合并 PDF。保留书签。"
+    },
+    "addAttachments": {
+        "name": "添加附件",
+        "subtitle": "将一个或多个文件嵌入到您的 PDF 中。"
+    },
+    "extractAttachments": {
+        "name": "提取附件",
+        "subtitle": "从 PDF 中提取所有嵌入的文件为 ZIP。"
+    },
+    "editAttachments": {
+        "name": "编辑附件",
+        "subtitle": "查看或移除 PDF 中的附件。"
+    },
+    "dividePages": {
+        "name": "分割页面",
+        "subtitle": "水平或垂直分割页面。"
+    },
+    "addBlankPage": {
+        "name": "添加空白页",
+        "subtitle": "在 PDF 的任意位置插入空白页。"
+    },
+    "reversePages": {
+        "name": "反转页面",
+        "subtitle": "反转文档中所有页面的顺序。"
+    },
+    "rotatePdf": {
+        "name": "旋转 PDF",
+        "subtitle": "以 90 度增量旋转页面。"
+    },
+    "nUpPdf": {
+        "name": "N-Up PDF",
+        "subtitle": "将多页排列在单张纸上。"
+    },
+    "combineToSinglePage": {
+        "name": "合并为单页",
+        "subtitle": "将所有页面拼接成一个连续的滚动页面。"
+    },
+    "viewMetadata": {
+        "name": "查看元数据",
+        "subtitle": "检查 PDF 的隐藏属性。"
+    },
+    "editMetadata": {
+        "name": "编辑元数据",
+        "subtitle": "更改作者、标题和其他属性。"
+    },
+    "pdfsToZip": {
+        "name": "PDF 转 ZIP",
+        "subtitle": "将多个 PDF 文件打包成一个 ZIP 归档。"
+    },
+    "comparePdfs": {
+        "name": "比较 PDF",
+        "subtitle": "并排比较两个 PDF。"
+    },
+    "posterizePdf": {
+        "name": "海报化 PDF",
+        "subtitle": "将大页面分割成多个小页面。"
+    },
+    "fixPageSize": {
+        "name": "修复页面尺寸",
+        "subtitle": "将所有页面标准化为统一尺寸。"
+    },
+    "linearizePdf": {
+        "name": "线性化 PDF",
+        "subtitle": "优化 PDF 以便快速网络查看。"
+    },
+    "pageDimensions": {
+        "name": "页面尺寸",
+        "subtitle": "分析页面大小、方向和单位。"
+    },
+    "removeRestrictions": {
+        "name": "移除限制",
+        "subtitle": "移除与数字签名 PDF 文件相关的密码保护和安全限制。"
+    },
+    "repairPdf": {
+        "name": "修复 PDF",
+        "subtitle": "从损坏的 PDF 文件中恢复数据。"
+    },
+    "encryptPdf": {
+        "name": "加密 PDF",
+        "subtitle": "通过添加密码锁定您的 PDF。"
+    },
+    "sanitizePdf": {
+        "name": "清理 PDF",
+        "subtitle": "移除元数据、注释、脚本等。"
+    },
+    "decryptPdf": {
+        "name": "解密 PDF",
+        "subtitle": "通过移除密码保护解锁 PDF。"
+    },
+    "flattenPdf": {
+        "name": "扁平化 PDF",
+        "subtitle": "使表单字段和注释不可编辑。"
+    },
+    "removeMetadata": {
+        "name": "移除元数据",
+        "subtitle": "从 PDF 中剥离隐藏数据。"
+    },
+    "changePermissions": {
+        "name": "更改权限",
+        "subtitle": "设置或更改 PDF 上的用户权限。"
+    }
+}

src/js/i18n/i18n.ts

@@ -3,18 +3,19 @@ import LanguageDetector from 'i18next-browser-languagedetector';
 import HttpBackend from 'i18next-http-backend';
 
 // Supported languages
-export const supportedLanguages = ['en', 'de', 'vi'] as const;
+export const supportedLanguages = ['en', 'de', 'zh', 'vi'] as const;
 export type SupportedLanguage = (typeof supportedLanguages)[number];
 
 export const languageNames: Record<SupportedLanguage, string> = {
     en: 'English',
     de: 'Deutsch',
+    zh: '中文',
     vi: 'Tiếng Việt',
 };
 
 export const getLanguageFromUrl = (): SupportedLanguage => {
     const path = window.location.pathname;
-    const langMatch = path.match(/^\/(en|de|vi)(?:\/|$)/);
+    const langMatch = path.match(/^\/(en|de|zh|vi)(?:\/|$)/);
     if (langMatch && supportedLanguages.includes(langMatch[1] as SupportedLanguage)) {
         return langMatch[1] as SupportedLanguage;
     }
@@ -70,9 +71,9 @@ export const changeLanguage = (lang: SupportedLanguage): void => {
     const currentLang = getLanguageFromUrl();
 
     let newPath: string;
-    if (currentPath.match(/^\/(en|de|vi)\//)) {
-        newPath = currentPath.replace(/^\/(en|de|vi)\//, `/${lang}/`);
-    } else if (currentPath.match(/^\/(en|de|vi)$/)) {
+    if (currentPath.match(/^\/(en|de|zh|vi)\//)) {
+        newPath = currentPath.replace(/^\/(en|de|zh|vi)\//, `/${lang}/`);
+    } else if (currentPath.match(/^\/(en|de|zh|vi)$/)) {
         newPath = `/${lang}`;
     } else {
         newPath = `/${lang}${currentPath}`;
@@ -134,7 +135,7 @@ export const rewriteLinks = (): void => {
             return;
         }
 
-        if (href.match(/^\/(en|de|vi)\//)) {
+        if (href.match(/^\/(en|de|zh|vi)\//)) {
             return;
         }
         let newHref: string;

src/js/logic/pdf-multi-tool.ts

@@ -13,6 +13,8 @@ pdfjsLib.GlobalWorkerOptions.workerSrc = new URL(
   import.meta.url
 ).toString();
 
+import { t } from '../i18n/i18n';
+
 interface PageData {
   id: string; // Unique ID for DOM reconciliation
   pdfIndex: number;
@@ -107,7 +109,7 @@ function showLoading(current: number, total: number) {
   loader.classList.remove('hidden');
   const percentage = Math.round((current / total) * 100);
   progress.style.width = `${percentage}%`;
-  text.textContent = `Rendering pages...`;
+  text.textContent = t('multiTool.renderingPages');
 }
 
 async function withButtonLoading(buttonId: string, action: () => Promise<void>) {
@@ -158,7 +160,7 @@ function initializeTool() {
   document.getElementById('upload-pdfs-btn')?.addEventListener('click', () => {
     console.log('Upload button clicked, isRendering:', isRendering);
     if (isRendering) {
-      showModal('Please Wait', 'Pages are still being rendered. Please wait...', 'info');
+      showModal(t('multiTool.pleaseWait'), t('multiTool.pagesRendering'), 'info');
       return;
     }
     document.getElementById('pdf-file-input')?.click();
@@ -193,9 +195,10 @@ function initializeTool() {
     bulkSplit();
   });
   document.getElementById('bulk-download-btn')?.addEventListener('click', () => {
+    if (isRendering) return;
     if (isRendering) return;
     if (selectedPages.size === 0) {
-      showModal('No Pages Selected', 'Please select at least one page to download.', 'info');
+      showModal(t('multiTool.noPagesSelected'), t('multiTool.selectOnePage'), 'info');
       return;
     }
     withButtonLoading('bulk-download-btn', async () => {
@@ -216,9 +219,10 @@ function initializeTool() {
   });
 
   document.getElementById('export-pdf-btn')?.addEventListener('click', () => {
+    if (isRendering) return;
     if (isRendering) return;
     if (allPages.length === 0) {
-      showModal('No Pages', 'There are no pages to export.', 'info');
+      showModal(t('multiTool.noPages'), t('multiTool.noPagesToExport'), 'info');
       return;
     }
     withButtonLoading('export-pdf-btn', async () => {
@@ -329,7 +333,7 @@ async function handlePdfUpload(e: Event) {
 
 async function loadPdfs(files: File[]) {
   if (isRendering) {
-    showModal('Please Wait', 'Pages are still being rendered. Please wait...', 'info');
+    showModal(t('multiTool.pleaseWait'), t('multiTool.pagesRendering'), 'info');
     return;
   }
 
@@ -424,7 +428,7 @@ async function loadPdfs(files: File[]) {
 
       } catch (e) {
         console.error(`Failed to load PDF ${file.name}:`, e);
-        showModal('Error', `Failed to load ${file.name}. The file may be corrupted.`, 'error');
+        showModal(t('multiTool.error'), `${t('multiTool.failedToLoad')} ${file.name}.`, 'error');
       }
     }
 
@@ -501,7 +505,7 @@ function createPageElement(canvas: HTMLCanvasElement | null, index: number): HTM
     loading.className = 'flex flex-col items-center justify-center text-gray-400';
     loading.innerHTML = `
       <i data-lucide="loader" class="w-8 h-8 animate-spin mb-2"></i>
-      <span class="text-xs">Loading...</span>
+      <span class="text-xs">${t('common.loading')}</span>
     `;
     preview.appendChild(loading);
     preview.classList.add('bg-gray-700'); // Darker background for loading
@@ -510,7 +514,7 @@ function createPageElement(canvas: HTMLCanvasElement | null, index: number): HTM
   // Page info
   const info = document.createElement('div');
   info.className = 'text-xs text-gray-400 text-center mb-2';
-  info.textContent = `Page ${index + 1}`;
+  info.textContent = `${t('common.page')} ${index + 1}`;
 
   // Actions toolbar
   const actions = document.createElement('div');
@@ -551,7 +555,7 @@ function createPageElement(canvas: HTMLCanvasElement | null, index: number): HTM
   const duplicateBtn = document.createElement('button');
   duplicateBtn.className = 'p-1 rounded hover:bg-gray-700';
   duplicateBtn.innerHTML = '<i data-lucide="copy" class="w-4 h-4 text-gray-300"></i>';
-  duplicateBtn.title = 'Duplicate this page';
+  duplicateBtn.title = t('multiTool.actions.duplicatePage');
   duplicateBtn.onclick = (e) => {
     e.stopPropagation();
     snapshot();
@@ -562,7 +566,7 @@ function createPageElement(canvas: HTMLCanvasElement | null, index: number): HTM
   const deleteBtn = document.createElement('button');
   deleteBtn.className = 'p-1 rounded hover:bg-gray-700';
   deleteBtn.innerHTML = '<i data-lucide="trash-2" class="w-4 h-4 text-red-400"></i>';
-  deleteBtn.title = 'Delete this page';
+  deleteBtn.title = t('multiTool.actions.deletePage');
   deleteBtn.onclick = (e) => {
     e.stopPropagation();
     snapshot();
@@ -573,7 +577,7 @@ function createPageElement(canvas: HTMLCanvasElement | null, index: number): HTM
   const insertBtn = document.createElement('button');
   insertBtn.className = 'p-1 rounded hover:bg-gray-700';
   insertBtn.innerHTML = '<i data-lucide="file-plus" class="w-4 h-4 text-gray-300"></i>';
-  insertBtn.title = 'Insert PDF after this page';
+  insertBtn.title = t('multiTool.actions.insertPdf');
   insertBtn.onclick = (e) => {
     e.stopPropagation();
     snapshot();
@@ -584,7 +588,7 @@ function createPageElement(canvas: HTMLCanvasElement | null, index: number): HTM
   const splitBtn = document.createElement('button');
   splitBtn.className = 'p-1 rounded hover:bg-gray-700';
   splitBtn.innerHTML = '<i data-lucide="scissors" class="w-4 h-4 text-gray-300"></i>';
-  splitBtn.title = 'Toggle split after this page';
+  splitBtn.title = t('multiTool.actions.toggleSplit');
   splitBtn.onclick = (e) => {
     e.stopPropagation();
     snapshot();

src/js/ui.ts

@@ -6,6 +6,7 @@ import { icons, createIcons } from 'lucide';
 import Sortable from 'sortablejs';
 import { getRotationState, updateRotationState } from './utils/rotation-state.js';
 import * as pdfjsLib from 'pdfjs-dist';
+import { t } from './i18n/i18n';
 
 pdfjsLib.GlobalWorkerOptions.workerSrc = new URL('pdfjs-dist/build/pdf.worker.min.mjs', import.meta.url).toString();
 
@@ -43,7 +44,7 @@ export const dom = {
     warningConfirmBtn: document.getElementById('warning-confirm-btn'),
 };
 
-export const showLoader = (text = 'Processing...') => {
+export const showLoader = (text = t('common.loading')) => {
     if (dom.loaderText) dom.loaderText.textContent = text;
     if (dom.loaderModal) dom.loaderModal.classList.remove('hidden');
 };
@@ -152,7 +153,7 @@ export const renderPageThumbnails = async (toolId: any, pdfDoc: any) => {
     const currentRenderId = Date.now();
     container.dataset.renderId = currentRenderId.toString();
 
-    showLoader('Rendering page previews...');
+    showLoader(t('multiTool.renderingTitle'));
 
     const pdfData = await pdfDoc.save();
     const pdf = await getPDFDocument({ data: pdfData }).promise;
@@ -373,7 +374,7 @@ export const renderPageThumbnails = async (toolId: any, pdfDoc: any) => {
         createIcons({ icons });
     } catch (error) {
         console.error('Error rendering page thumbnails:', error);
-        showAlert('Error', 'Failed to render page thumbnails');
+        showAlert(t('multiTool.error'), t('multiTool.errorRendering'));
     } finally {
         hideLoader();
     }
@@ -418,9 +419,9 @@ const createFileInputHTML = (options = {}) => {
         <div id="drop-zone" class="relative flex flex-col items-center justify-center w-full h-48 border-2 border-dashed border-gray-600 rounded-xl cursor-pointer bg-gray-900 hover:bg-gray-700 transition-colors duration-300">
             <div class="flex flex-col items-center justify-center pt-5 pb-6">
                 <i data-lucide="upload-cloud" class="w-10 h-10 mb-3 text-gray-400"></i>
-                <p class="mb-2 text-sm text-gray-400"><span class="font-semibold">Click to select a file</span> or drag and drop</p>
-                <p class="text-xs text-gray-500">${multiple ? 'PDFs or Images' : 'A single PDF file'}</p>
-                <p class="text-xs text-gray-500">Your files never leave your device.</p>
+                <p class="mb-2 text-sm text-gray-400"><span class="font-semibold">${t('upload.clickToSelect')}</span> ${t('upload.orDragAndDrop')}</p>
+                <p class="text-xs text-gray-500">${multiple ? t('upload.pdfOrImages') : 'A single PDF file'}</p>
+                <p class="text-xs text-gray-500">${t('upload.filesNeverLeave')}</p>
             </div>
             <input id="file-input" type="file" class="absolute top-0 left-0 w-full h-full opacity-0 cursor-pointer" ${multiple} accept="${acceptedFiles}">
         </div>
@@ -430,10 +431,10 @@ const createFileInputHTML = (options = {}) => {
             <!-- NEW: Add control buttons for multi-file uploads -->
             <div id="file-controls" class="hidden mt-4 flex gap-3">
                 <button id="add-more-btn" class="btn bg-indigo-600 hover:bg-indigo-700 text-white font-semibold px-4 py-2 rounded-lg flex items-center gap-2">
-                    <i data-lucide="plus"></i> Add More Files
+                    <i data-lucide="plus"></i> ${t('upload.addMore')}
                 </button>
                 <button id="clear-files-btn" class="btn bg-red-600 hover:bg-red-700 text-white font-semibold px-4 py-2 rounded-lg flex items-center gap-2">
-                    <i data-lucide="x"></i> Clear All
+                    <i data-lucide="x"></i> ${t('upload.clearAll')}
                 </button>
             </div>
         `

src/pages/pdf-multi-tool.html

@@ -58,7 +58,7 @@
         </div>
         <button id="close-tool-btn"
           class="flex items-center gap-1 bg-gray-700 hover:bg-gray-600 text-white px-2 sm:px-3 md:px-4 py-1 sm:py-1.5 md:py-2 rounded text-xs sm:text-sm md:text-base">
-          <i data-lucide="x" class="w-4 h-4 sm:w-5 sm:h-5"></i> Close
+          <i data-lucide="x" class="w-4 h-4 sm:w-5 sm:h-5"></i> <span data-i18n="common.close">Close</span>
         </button>
       </div>
     </div>
@@ -76,8 +76,8 @@
         <button id="upload-pdfs-btn"
           class="flex items-center gap-1 sm:gap-2 bg-indigo-600 hover:bg-indigo-700 text-white px-2 sm:px-3 md:px-4 py-1 sm:py-1.5 md:py-2 rounded text-xs sm:text-sm md:text-base">
           <i data-lucide="upload" class="w-3 h-3 sm:w-4 sm:h-4"></i>
-          <span class="hidden sm:inline">Upload PDFs</span>
-          <span class="sm:hidden">Upload</span>
+          <span class="hidden sm:inline" data-i18n="multiTool.uploadPdfs">Upload PDFs</span>
+          <span class="sm:hidden" data-i18n="multiTool.upload">Upload</span>
         </button>
 
         <div class="border-l border-gray-600 h-5 sm:h-6 mx-1"></div>
@@ -87,107 +87,107 @@
         <button id="add-blank-page-btn"
           class="flex items-center gap-1 sm:gap-2 bg-gray-700 hover:bg-gray-600 text-white px-2 sm:px-3 md:px-4 py-1 sm:py-1.5 md:py-2 rounded text-xs sm:text-sm md:text-base">
           <i data-lucide="file-plus" class="w-3 h-3 sm:w-4 sm:h-4"></i>
-          <span class="hidden sm:inline">Add Blank Page</span>
+          <span class="hidden sm:inline" data-i18n="multiTool.addBlankPage">Add Blank Page</span>
         </button>
 
         <div class="border-l border-gray-600 h-5 sm:h-6 mx-1"></div>
-        <span class="text-gray-400 text-xs sm:text-sm md:inline">Edit:</span>
+        <span class="text-gray-400 text-xs sm:text-sm md:inline" data-i18n="multiTool.edit">Edit:</span>
 
 
         <!-- Undo / Redo / Reset -->
         <button id="undo-btn"
           class="flex items-center gap-1 sm:gap-2 bg-gray-700 hover:bg-gray-600 text-white px-2 sm:px-3 md:px-4 py-1 sm:py-1.5 md:py-2 rounded text-xs sm:text-sm md:text-base">
           <i data-lucide="undo-2" class="w-3 h-3 sm:w-4 sm:h-4"></i>
-          <span class="hidden lg:inline">Undo</span>
+          <span class="hidden lg:inline" data-i18n="multiTool.undo">Undo</span>
         </button>
 
         <button id="redo-btn"
           class="flex items-center gap-1 sm:gap-2 bg-gray-700 hover:bg-gray-600 text-white px-2 sm:px-3 md:px-4 py-1 sm:py-1.5 md:py-2 rounded text-xs sm:text-sm md:text-base">
           <i data-lucide="redo-2" class="w-3 h-3 sm:w-4 sm:h-4"></i>
-          <span class="hidden lg:inline">Redo</span>
+          <span class="hidden lg:inline" data-i18n="multiTool.redo">Redo</span>
         </button>
 
         <button id="reset-btn"
           class="flex items-center gap-1 sm:gap-2 bg-gray-700 hover:bg-gray-600 text-white px-2 sm:px-3 md:px-4 py-1 sm:py-1.5 md:py-2 rounded text-xs sm:text-sm md:text-base">
           <i data-lucide="refresh-ccw" class="w-3 h-3 sm:w-4 sm:h-4"></i>
-          <span class="hidden lg:inline">Reset</span>
+          <span class="hidden lg:inline" data-i18n="multiTool.reset">Reset</span>
         </button>
 
         <div class="border-l border-gray-600 h-5 sm:h-6 mx-1"></div>
 
         <!-- Selection -->
-        <span class="text-gray-400 text-xs sm:text-sm md:inline">Selection:</span>
+        <span class="text-gray-400 text-xs sm:text-sm md:inline" data-i18n="multiTool.selection">Selection:</span>
 
         <button id="select-all-btn"
           class="flex items-center gap-1 sm:gap-2 bg-gray-700 hover:bg-gray-600 text-white px-2 sm:px-3 md:px-4 py-1 sm:py-1.5 md:py-2 rounded text-xs sm:text-sm md:text-base">
           <i data-lucide="check-square" class="w-3 h-3 sm:w-4 sm:h-4"></i>
-          <span class="hidden lg:inline">Select All</span>
+          <span class="hidden lg:inline" data-i18n="multiTool.selectAll">Select All</span>
         </button>
 
         <button id="deselect-all-btn"
           class="flex items-center gap-1 sm:gap-2 bg-gray-700 hover:bg-gray-600 text-white px-2 sm:px-3 md:px-4 py-1 sm:py-1.5 md:py-2 rounded text-xs sm:text-sm md:text-base">
           <i data-lucide="square" class="w-3 h-3 sm:w-4 sm:h-4"></i>
-          <span class="hidden lg:inline">Deselect All</span>
+          <span class="hidden lg:inline" data-i18n="multiTool.deselectAll">Deselect All</span>
         </button>
 
         <div class="border-l border-gray-600 h-5 sm:h-6 mx-1"></div>
 
         <!-- Rotate -->
-        <span class="text-gray-400 text-xs sm:text-sm md:inline">Rotate:</span>
+        <span class="text-gray-400 text-xs sm:text-sm md:inline" data-i18n="multiTool.rotate">Rotate:</span>
         <button id="bulk-rotate-left-btn"
           class="flex items-center gap-1 sm:gap-2 bg-gray-700 hover:bg-gray-600 text-white px-2 sm:px-3 md:px-4 py-1 sm:py-1.5 md:py-2 rounded text-xs sm:text-sm md:text-base">
           <i data-lucide="rotate-ccw" class="w-3 h-3 sm:w-4 sm:h-4"></i>
-          <span class="hidden xl:inline">Left</span>
+          <span class="hidden xl:inline" data-i18n="multiTool.rotateLeft">Left</span>
         </button>
 
         <button id="bulk-rotate-btn"
           class="flex items-center gap-1 sm:gap-2 bg-gray-700 hover:bg-gray-600 text-white px-2 sm:px-3 md:px-4 py-1 sm:py-1.5 md:py-2 rounded text-xs sm:text-sm md:text-base">
           <i data-lucide="rotate-cw" class="w-3 h-3 sm:w-4 sm:h-4"></i>
-          <span class="hidden xl:inline">Right</span>
+          <span class="hidden xl:inline" data-i18n="multiTool.rotateRight">Right</span>
         </button>
 
         <div class="border-l border-gray-600 h-5 sm:h-6 mx-1"></div>
-        <span class="text-gray-400 text-xs sm:text-sm md:inline">Transform:</span>
+        <span class="text-gray-400 text-xs sm:text-sm md:inline" data-i18n="multiTool.transform">Transform:</span>
 
 
         <!-- Duplicate / Split -->
         <button id="bulk-duplicate-btn"
           class="flex items-center gap-1 sm:gap-2 bg-gray-700 hover:bg-gray-600 text-white px-2 sm:px-3 md:px-4 py-1 sm:py-1.5 md:py-2 rounded text-xs sm:text-sm md:text-base">
           <i data-lucide="copy" class="w-3 h-3 sm:w-4 sm:h-4"></i>
-          <span class="hidden xl:inline">Duplicate</span>
+          <span class="hidden xl:inline" data-i18n="multiTool.duplicate">Duplicate</span>
         </button>
 
         <button id="bulk-split-btn"
           class="flex items-center gap-1 sm:gap-2 bg-gray-700 hover:bg-gray-600 text-white px-2 sm:px-3 md:px-4 py-1 sm:py-1.5 md:py-2 rounded text-xs sm:text-sm md:text-base">
           <i data-lucide="scissors" class="w-3 h-3 sm:w-4 sm:h-4"></i>
-          <span class="hidden xl:inline">Split</span>
+          <span class="hidden xl:inline" data-i18n="multiTool.split">Split</span>
         </button>
 
         <div class="border-l border-gray-600 h-5 sm:h-6 mx-1"></div>
-        <span class="text-gray-400 text-xs sm:text-sm md:inline">Clear:</span>
+        <span class="text-gray-400 text-xs sm:text-sm md:inline" data-i18n="multiTool.clear">Clear:</span>
 
 
         <!-- Delete -->
         <button id="bulk-delete-btn"
           class="flex items-center gap-1 sm:gap-2 bg-red-500 hover:bg-red-700 text-white px-2 sm:px-3 md:px-4 py-1 sm:py-1.5 md:py-2 rounded text-xs sm:text-sm md:text-base">
           <i data-lucide="trash-2" class="w-3 h-3 sm:w-4 sm:h-4"></i>
-          <span class="hidden xl:inline">Delete</span>
+          <span class="hidden xl:inline" data-i18n="multiTool.delete">Delete</span>
         </button>
 
         <div class="border-l border-gray-600 h-5 sm:h-6 mx-1"></div>
 
         <!-- Download -->
-        <span class="text-gray-400 text-xs sm:text-sm md:inline">Download:</span>
+        <span class="text-gray-400 text-xs sm:text-sm md:inline" data-i18n="multiTool.download">Download:</span>
         <button id="bulk-download-btn"
           class="flex items-center gap-1 sm:gap-2 bg-green-600 hover:bg-green-700 text-white px-2 sm:px-3 md:px-4 py-1 sm:py-1.5 md:py-2 rounded text-xs sm:text-sm md:text-base">
           <i data-lucide="download" class="w-3 h-3 sm:w-4 sm:h-4"></i>
-          <span class="hidden xl:inline">Download Selected</span>
+          <span class="hidden xl:inline" data-i18n="multiTool.downloadSelected">Download Selected</span>
         </button>
 
         <button id="export-pdf-btn"
           class="flex items-center gap-1 sm:gap-2 bg-indigo-600 hover:bg-indigo-700 text-white px-2 sm:px-3 md:px-4 py-1 sm:py-1.5 md:py-2 rounded text-xs sm:text-sm md:text-base">
           <i data-lucide="download" class="w-3 h-3 sm:w-4 sm:h-4"></i>
-          <span class="hidden xl:inline">Export PDF</span>
+          <span class="hidden xl:inline" data-i18n="multiTool.exportPdf">Export PDF</span>
         </button>
       </div>
     </div>
@@ -198,11 +198,14 @@
         class="hidden border-2 border-dashed border-gray-600 rounded-lg p-6 sm:p-12 text-center max-w-full cursor-pointer"
         onclick="document.getElementById('pdf-file-input').click()">
         <i data-lucide="upload-cloud" class="w-12 h-12 sm:w-16 sm:h-16 mx-auto text-gray-400 mb-3 sm:mb-4"></i>
-        <p class="text-gray-300 text-base sm:text-lg mb-1 sm:mb-2">Upload PDF Files</p>
-        <p class="text-gray-400 text-xs sm:text-sm mb-3 sm:mb-4">Drag and drop PDF files here, or click to select</p>
+        <p class="text-gray-300 text-base sm:text-lg mb-1 sm:mb-2" data-i18n="multiTool.uploadPdfFiles">Upload PDF Files
+        </p>
+        <p class="text-gray-400 text-xs sm:text-sm mb-3 sm:mb-4" data-i18n="multiTool.dragAndDrop">Drag and drop PDF
+          files here, or click to select</p>
         <input type="file" id="pdf-file-input" accept="application/pdf" multiple class="hidden">
         <button onclick="event.stopPropagation(); document.getElementById('pdf-file-input').click()"
-          class="bg-indigo-600 hover:bg-indigo-700 text-white px-4 sm:px-6 py-2 rounded text-sm sm:text-base">
+          class="bg-indigo-600 hover:bg-indigo-700 text-white px-4 sm:px-6 py-2 rounded text-sm sm:text-base"
+          data-i18n="multiTool.selectFiles">
           Select Files
         </button>
       </div>
@@ -218,7 +221,8 @@
       <div class="flex items-center justify-center mb-4">
         <i data-lucide="loader" class="w-12 h-12 text-indigo-400 animate-spin"></i>
       </div>
-      <p id="loading-text" class="text-white text-center text-lg mb-4">Rendering pages...</p>
+      <p id="loading-text" class="text-white text-center text-lg mb-4" data-i18n="multiTool.renderingPages">Rendering
+        pages...</p>
       <div class="w-full bg-gray-700 rounded-full h-2.5">
         <div id="loading-progress" class="bg-indigo-600 h-2.5 rounded-full transition-all duration-300"
           style="width: 0%"></div>

vite.config.ts

@@ -11,7 +11,7 @@ function pagesRewritePlugin(): Plugin {
       server.middlewares.use((req, res, next) => {
         const url = req.url?.split('?')[0] || '';
 
-        const langMatch = url.match(/^\/(en|de)(\/.*)?$/);
+        const langMatch = url.match(/^\/(en|de|zh)(\/.*)?$/);
         if (langMatch) {
           const lang = langMatch[1];
           const restOfPath = langMatch[2] || '/';