Alternate & Mix PDFs
Interleave pages from two or more PDFs (A1, B1, A2, B2…).
Processed on your device
This tool runs in your browser. Your files are not uploaded. Privacy
Features
- Works with multiple files at once
- Free to use, no sign-up
- No watermarks
- Processed on your device — files are not uploaded
How to use Alternate & Mix PDFs
- 1Upload your PDFs (drag and drop, choose, or paste)
- 2Adjust the options if you want to
- 3Click Alternate & Mix PDFs
- 4Download the result
Frequently asked questions
I scanned fronts and backs separately. Which option do I need?
Add the fronts first and the backs second, then turn on "Reverse second file" if your scanner fed the backs in reverse order.
Is Alternate & Mix PDFs really free?
Yes. Every tool on this site is free with no sign-up, no watermark and no premium tier. The only limits are technical ones that keep the service fast for everyone.
Are my files uploaded?
No. This tool runs entirely in your browser, so your file stays on your device.