Merge PDF
Combine several PDF files into a single document. Drag to set the order. Everything runs in your browser — your files never leave your device.
How to merge PDF files
- Click the box above and select two or more PDF files (or drag them in).
- Reorder them by dragging if needed — the final PDF follows that order.
- Press Merge PDF and your combined file downloads automatically.
Is it private?
Yes. Everything runs inside your web browser, using your own device. Nothing is uploaded to any server, so your documents stay completely private.
Frequently asked questions
Is there a file size or page limit?
There's no artificial limit. Because the work happens on your device, the only limit is your computer's memory.
Does it add a watermark?
No. The merged PDF is clean, with no watermarks and no sign-up required.
How many PDFs can I merge at once?
There is no fixed limit on the number of files or pages. Because everything is processed in your browser, the practical ceiling is your device's memory, and combining dozens of typical documents is no problem on an ordinary laptop or phone.
Can I change the order of the files before merging?
Yes, you arrange the documents in the exact order you want before combining them, and the output follows that order page for page. Nothing is reshuffled automatically.
Can I merge password-protected PDFs?
Encrypted files need to be unlocked before they can be read and combined. Open them with the Unlock PDF tool on this site first, using the password you know, then add the unlocked copies to the merge.