Merge PDF files online — free, in your browser

Combine two or more PDFs into a single document. Drag and drop to reorder, then download the merged file in seconds. Everything runs in your browser, so your documents never leave your device.

Merge — combine several PDFs into one, in any order.

Drop PDFs here, or click to browse

2–10 PDFs · recommended ≤ 50 MB each

Everything runs locally in a Web Worker. No uploads — your files never leave this device.

How to merge PDF files

  1. Add your PDFs — drop two or more files (up to 10).
  2. Reorder — use the up/down arrows or drag and drop to set the page order.
  3. Merge — press "Merge PDFs" and download the combined file.

Why use this PDF merger?

  • Private by design — merging happens locally in a Web Worker, so your documents never touch a server.
  • Free and unlimited — no sign-up, no watermarks, no file quotas.
  • Reorder before you merge — put pages in exactly the order you need.

Frequently asked questions

How many PDFs can I merge?

You can merge between 2 and 10 PDF files at a time. The combined file is created entirely in your browser.

Can I change the order of the files before merging?

Yes. Use the up and down arrows next to each file, or drag and drop to reorder them. The merged PDF follows the order you choose.

Are my files uploaded anywhere?

No. Your PDFs are read into your browser and merged locally in a Web Worker. They are never uploaded to a server.