Advanced PDF Splitter

1. Advanced PDF Preview:
   • Uses PDF.js for client-side PDF rendering
   • Page navigation controls
   • Displays current page and total pages
2. Multiple Split Options:
   • Split by page ranges (multiple ranges can be added)
   • Split by interval (every N pages)
   • Split into single pages
3. Robust Error Handling:
   • File type validation (PDF only)
   • File size limit (10MB)
   • Page range validation
   • Clear error messages
4. Responsive Design:
   • Works on both desktop and mobile devices
   • Adapts layout for smaller screens
   • Touch-friendly controls
5. User Experience:
   • Drag and drop support
   • Loading indicators
   • Clear visual feedback
   • Download links for all split files
6. Security:
   • All processing happens client-side
   • No file uploads to external servers

Note: For a production environment, you might need to implement the actual PDF splitting functionality using a more robust library or server-side processing, as the current implementation includes a simplified version for demonstration purposes.