How it works
The tool reads each PDF in your browser and copies its pages into a new document in the order you set. Nothing is re-rendered or compressed, so text stays selectable and the file looks exactly like the original. Pages are copied with the open-source pdf-lib library (MIT licence).
contract.pdf (4 pages) + appendix.pdf (2 pages) → merged.pdf (6 pages)
Tips
- Use the arrows to change the order before merging.
- To pull out pages, switch to Split and type the pages to keep, like 2-4 or 1, 3, 9-.
- Password-protected PDFs must be unlocked first.
- Everything runs in your browser; nothing is uploaded.
Standards and sources
Last reviewed October 14, 2026
Frequently asked questions
Are my files uploaded?
No. The PDFs are read and rebuilt in your browser; nothing is sent to a server.
Will quality or text change?
No. Pages are copied as they are, so text stays selectable and images keep their resolution.
Can I merge password-protected PDFs?
Not while they are locked. Remove the password in your PDF reader first, then add the file again.
Is there a size limit?
Up to 200 MB in total. Very large files depend on your device’s memory, so phones may be slower.
Related tags
#Converters & units7#Work18#Students12#Math & calculators17#Money22#Time & date11#Travel11#Lifestyle14#Science7