Merge PDF

Add several PDFs, drag the order you want, and merge them into a single document. Processing stays on this device.

Runs entirely in your browser. Nothing you paste or upload is sent to a server.

Drop PDF files here, or use Choose PDFs

How to use it

  1. Choose or drop two or more PDF files.
  2. Reorder or remove files as needed.
  3. Merge, then download the combined PDF.

Useful for

  • Combine scanned chapters
  • Join contracts and annexes
  • Build one packet from several exports

Example

Add report-a.pdf and report-b.pdf, put A first, merge, and download kepttools-merged.pdf with every page in order.

Common mistakes

  • Password-protected PDFs cannot be merged here until the password is removed.
  • Very large files may fail on low-memory phones — stay under the size limit shown on the page.
  • Corrupted PDFs show an error and are skipped from the merge list.

Related tools

Questions about Merge PDF

Are my PDFs uploaded? +

No. Merge runs entirely in your browser with pdf-lib. Files stay on this device.

Can I change the order? +

Yes. Use Move up / Move down on each file before merging.

What about password-protected PDFs? +

Encrypted PDFs cannot be opened here. Remove the password in another app first, then merge.