Merge PDFs, in your browser.
Combine as many PDFs as you need. Drag to reorder them, then download a single merged file. Nothing is uploaded — merging happens entirely on your device.
Add your PDFs
Pick the files from your device, or drag and drop them onto the page. Add as many as you need.
Reorder
Drag the files to set the order they should appear in the merged PDF. Use the keyboard arrows if you prefer.
Merge and download
Click merge. The combined file is produced in your browser and offered as a download — no server involved.
Why client-side?
Private by default
Your files never leave your device. There's no server to send them to.
No signup, no watermark
No accounts, no email, no paid tiers, no logo stamped on your output.
Unlimited files
Add as many PDFs as your device can handle. The only limit is your available memory.
Original quality
Pages are copied directly — text, images, and forms are preserved exactly.
FAQ
Are my PDFs uploaded anywhere?
No. The merge runs in your browser using pdf-lib. The files stay on your device.
Is there a limit on how many PDFs I can merge?
No hard limit. The only constraint is your device's memory — the merger keeps each file in memory while building the result.
Is the order of pages preserved exactly?
Yes. The pages of each PDF are copied in their original order. Reordering only changes the order of the files themselves.
What about encrypted PDFs?
The merger tries to read encrypted PDFs in compatibility mode. Files with a real password will be skipped with an error message.