#PDF to E-Book Converter

Implementation Notes

1. Frontend:
   • The HTML provides a clean, responsive interface for uploading and converting PDFs
   • CSS styles the application with a modern, user-friendly design
   • JavaScript handles file uploads, previews, and simulates the conversion process
2. Backend (Java Spring Boot):
   • Handles file uploads and conversion requests
   • Validates file types and sizes
   • Provides download endpoints for converted files
   • Includes basic file cleanup after processing
3. Real Implementation Requirements:
   • For actual PDF to e-book conversion, you would need to integrate a library like:
     • pdf2htmlEX for HTML/EPUB conversion
     • Calibre’s ebook-convert for comprehensive format support
   • The Java backend would need to call these tools or use Java libraries that provide similar functionality
4. Security Considerations:
   • Always validate file types on both client and server
   • Sanitize filenames to prevent directory traversal attacks
   • Consider rate limiting to prevent abuse
   • Store files in a secure, non-publicly accessible directory
5. Production Enhancements:
   • Add user authentication
   • Implement a queue system for large files
   • Add progress tracking for conversions
   • Include more detailed error reporting
   • Add support for batch processing