Merge PDF
Combine multiple PDFs into oneRuns locally · nothing uploaded
Choose PDF files (multiple allowed)Click or drop PDFs here. Files stay on your device.
Also works as:combine pdfjoin pdf filespdf merger
How to use
- 1Choose or drop several PDF files.
- 2Reorder them with the arrows.
- 3Click Merge PDF and download the result.
FAQ
Are my PDFs uploaded?
No. Files are processed by JavaScript in your browser and never sent to a server, so it's safe for contracts and other sensitive documents.
Is there a page limit or watermark?
No. Very large files (hundreds of MB) are limited by browser memory; merge them in batches if needed.
Can I merge password-protected PDFs?
PDFs that need a password to open can't be read. Remove the password in your PDF reader first.