How to merge PDF files
- Drop two or more PDF files into the box, or click to choose them.
- Drag the files (or use the arrows) to put them in the right order.
- Click “Merge PDF” and download your combined file.
Frequently asked questions
Are my PDFs uploaded to a server?
No. The files are read and merged by JavaScript inside your browser tab. Nothing is sent over the internet, which you can verify by going offline after the page has loaded.
Is there a limit on the number of files or pages?
There is no fixed limit. Merging dozens of files or several hundred pages works on most computers; very large files depend on your device memory.
Will bookmarks and links be kept?
Page content, images and text are kept exactly. Document-level bookmarks (outlines) of the source files are not carried over into the merged file.
Can I merge password-protected PDFs?
No. Encrypted PDFs cannot be opened here. Remove the password in your PDF reader first, then merge.