Merge PDF on Mac
Combine multiple PDF files into one document instantly. Works natively on macOS Safari and Chrome. 100% client-side processing. Files never leave your device.
Start Now - FreeHow It Works
Why Choose MendPDF?
Native performance on Safari, Chrome, and Firefox for macOS
No Mac app download needed. Runs in your browser
Full Retina display support for crystal-clear rendering
Frequently Asked Questions
How do I merge PDF files online for free?
Simply drag and drop your PDF files into MendPDF's merge tool. All processing happens locally in your browser — no uploads, no servers, completely free.
Is it safe to merge PDFs online?
Yes. MendPDF uses 100% client-side WebAssembly processing. Your files never leave your device. This zero-trust architecture means there's zero risk of data breaches.
Can I merge PDFs on Mac and Windows?
Absolutely. MendPDF works on any modern browser including Safari, Chrome, Firefox, and Edge on both macOS and Windows.
Zero-Trust Architecture
MendPDF uses 100% client-side WebAssembly processing. Files never leave the device. Zero-Trust architecture. No server uploads. All PDF manipulation happens locally in your browser, ensuring complete data privacy and security.