Free online PDF tool

Merge PDF

Join several PDF files into one, in the order you choose – free, no sign-up, and your files never leave your device.

How to merge PDF files

Tap Add PDF and choose two or more PDFs (or drop them on the box on a computer).
Use ↑ ↓ to put them in the right order.
Tap Combine.
Tap Download to save the merged PDF.

How many PDFs can I merge?

As many as you need. Each PDF can be up to 100 MB; very large files are slower on phones.

Can I merge password-protected PDFs?

No. Remove the password first, then merge.

Is my PDF uploaded?

No. The files are joined inside your browser. Nothing is sent to a server.

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PDF Tools use pdf-lib (MIT licence) and PDF.js (Apache 2.0 licence).