Merge PDF Files

Combine several PDF documents into a single file in the order you choose.

🔒 100% private Your files stay on your device. Nothing is uploaded to any server.

Drop PDF files here or tap to choose

How to merge PDF files

  1. Add two or more PDF files.
  2. Use the ↑ ↓ buttons to set the order.
  3. Press Merge PDFs and download the combined document.

Merge PDFs without sending them anywhere

Contracts, invoices, bank statements and school forms often contain private data. This merger uses the open-source pdf-lib library to copy pages directly in your browser, so documents never touch a server and the output contains no watermark.

Frequently asked questions

How many PDFs can I merge?

There is no fixed limit. The practical limit is your device memory; dozens of normal documents work fine.

Is my PDF uploaded?

No. All merging happens locally in your browser.

Can I change the order?

Yes. Use the up and down arrows next to each file before merging.

Are password-protected PDFs supported?

Encrypted PDFs need to be unlocked first; the tool will show an error if a file cannot be read.

Is there a watermark?

No. The merged PDF contains only your original pages.