A comprehensive web application for PDF manipulation and conversion operations.

• Merge PDFs: Combine multiple PDF files into one
• Split PDF: Extract specific pages or split into separate files
• PDF to Images: Convert PDF pages to PNG/JPG images
• Images to PDF: Convert images to PDF format
• Compress PDF: Reduce PDF file size
• Add Watermark: Add text or image watermarks
• Extract Text: Extract text content from PDFs
• Rotate Pages: Rotate PDF pages
• Add Password: Protect PDFs with passwords
• Remove Password: Remove password protection

• Frontend: React with TypeScript, TailwindCSS
• Backend: Hono API framework
• PDF Processing: PDF-lib library
• File Handling: Browser File API

├── backend/
│   ├── index.ts           # Main API server
│   └── routes/
│       ├── merge.ts       # PDF merging
│       ├── split.ts       # PDF splitting
│       ├── convert.ts     # Format conversion
│       ├── compress.ts    # PDF compression
│       └── utils.ts       # Shared utilities
├── frontend/
│   ├── index.html         # Main HTML template
│   ├── index.tsx          # React app entry point
│   ├── components/
│   │   ├── App.tsx        # Main app component
│   │   ├── FileUpload.tsx # File upload component
│   │   ├── ToolSelector.tsx # Tool selection
│   │   └── ProcessingArea.tsx # Processing interface
│   └── style.css          # Custom styles
└── shared/
    └── types.ts           # Shared TypeScript types

1. Select a PDF operation from the tool menu
2. Upload your PDF file(s) or images
3. Configure operation settings
4. Process and download the result

• POST /api/merge - Merge multiple PDFs
• POST /api/split - Split PDF into pages
• POST /api/convert - Convert between formats
• POST /api/compress - Compress PDF file
• POST /api/watermark - Add watermark to PDF
• POST /api/extract-text - Extract text from PDF
• POST /api/rotate - Rotate PDF pages
• POST /api/protect - Add password protection
• POST /api/unlock - Remove password protection