How to use
- Choose PDF A and PDF B.
- Reverse either file if required by the scan order.
- Choose the starting file and download the interleaved result.
Privacy and data handling
Input and output are processed by the current browser tab. The site has no content upload API and does not write your content to an account or cloud storage.
Formats and limitations
This tool interleaves by page position and cannot identify front or back sides automatically. Remaining pages from the longer file are appended.
Frequently asked questions
What settings work for duplex scans?
If fronts are scanned first and backs are scanned after flipping the stack, the second file often needs reversing. Test with a few pages first.