Merge PDF
PDF toolCombine several PDF files into one, in the order you choose.
This tool runs entirely in your browser. Your files never leave your device — nothing is uploaded.
Add PDFs
Drop PDFs here or click to browseAdd two or more PDFs · up to 25 MB each.Browse files
Merge
Add at least two PDFs to enable merging.
Frequently asked questions
Are my PDFs uploaded to a server?
No. Merging happens in your browser with pdf-lib. Your documents never leave your device.
Can I change the order of the files?
Yes. Reorder files in the list before merging and remove any you don’t need.
Is there a limit on the number of PDFs?
On the free plan you can merge up to 10 PDFs at once, up to 25 MB each, with no daily limits — Pro raises those caps. Because merging runs locally, very large jobs also depend on your device’s memory.