About PDF Split & Merge Tool
Professional PDF tool to split large PDFs into smaller files or merge multiple PDFs into one document. Fast, secure, and completely free with no file size limits. All processing happens locally in your browser using pdf-lib for maximum performance.
Features
- Visual Page Selection: See thumbnails of all pages
- Click to Select: Click any page to toggle selection
- Merge PDFs: Combine multiple PDFs into one file
- Drag & Drop: Easy file upload interface
- Reorder Files: Arrange PDFs before merging
- No File Limits: Process PDFs of any size
- Fast Processing: Powered by pdf-lib and PDF.js
- 100% Secure: All processing happens locally
- No Upload: Files never leave your device
How to Split PDF
- Click "Split PDF" mode
- Upload or drag & drop your PDF file
- Wait for page thumbnails to generate
- Click pages to select/deselect them
- Click "Extract Selected Pages" to download
How to Merge PDFs
- Click "Merge PDFs" mode
- Upload or drag & drop multiple PDF files
- Reorder files using up/down arrows if needed
- Click "Merge PDFs" to combine
- Download the merged PDF file
Privacy & Security
Your PDF files are processed entirely in your browser. No files are uploaded to any server, and no data is stored or transmitted. Your documents remain completely private and secure on your device.