Merge PDF
Combine multiple PDF files into a single document
Drop PDF files here
or click to browse
Max 20 files, up to 100 MB each
Drag to Reorder
Arrange files in any order
No Upload Required
All processing in browser
Unlimited Files
Merge up to 20 PDFs at once
About Merge PDF
PDFNinja's Merge PDF tool allows you to combine multiple PDF files into a single document quickly and easily. Whether you need to merge contracts, reports, presentations, or any other PDF documents, our free online tool gets the job done in seconds. Simply drag and drop your PDF files, arrange them in the desired order, and click merge. All processing happens locally in your browser, ensuring your documents remain private and secure. No registration, no upload to servers, no watermarks - just fast, free PDF merging.
Key Benefits
- Completely free - no hidden costs
- No registration required
- Files never leave your device
- Fast processing in browser
- Works offline after initial load
- No watermarks on output
Features
- Combine up to 20 PDF files at once
- Drag and drop to reorder pages
- Preview files before merging
- No file size limits
- 100% free to use
- Works in any browser
Common Use Cases
- Combine multiple PDF chapters into one document
- Merge scanned documents into a single file
- Join multiple invoice PDFs together
- Combine research papers and articles
- Merge contract pages into one complete document
Privacy Guaranteed
All processing happens locally in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.