About this tool
Combine multiple PDF files into a single document, right in your browser. Drag in the files, reorder them with the arrows, and merge — pdf-lib stitches the pages together locally, so nothing is uploaded.
Frequently asked questions
Are my PDFs uploaded anywhere?
No. The files are read and merged entirely in your browser with pdf-lib; nothing is ever sent to a server.
Can I change the order of the files?
Yes — use the ↑ / ↓ buttons next to each file to set the order before you merge.