How to merge PDF files
- Add your PDFs — drop two or more files (up to 10).
- Reorder — use the up/down arrows or drag and drop to set the page order.
- 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.