Alternate & Mix
Alternate & Mix combines two PDFs by taking one page from each in turn. Reverse the second file when a single-sided scanner captured the backs in reverse order.
- Input
- Exactly two PDFs
- Output
- One interleaved PDF
- Runs
- In your browser. The file never leaves your device.
- Cost
- Free. No sign-up, no watermark.
Choose PDF files
or drop them here · up to 2 files
How to alternate and mix PDF pages
Choose two PDFs
Select the first and second document in the order you want to mix them.
Choose the second file’s direction
Reverse its pages if your scanner produced the backs in reverse order.
Mix and download
The tool alternates pages and adds any pages left over at the end.
Interleave pages without redrawing
One from each file
Pages alternate first, second, first, second until both are exhausted.
Reverse the backs
The second file can be read from last page to first for a double-sided scan.
Keeps original page content
The PDF pages are copied without rasterizing their text or images.
Frequently asked questions
What if the PDFs have different numbers of pages?
All extra pages from the longer document are added at the end.
Can I mix more than two PDFs?
This tool takes exactly two PDFs. Use Merge PDF to combine more files end to end.
Does reversing change the original file?
No. The reversal is used only in the new mixed output.
Is my file uploaded anywhere?
No. Alternate & Mix runs entirely in your browser: the file is opened and processed on your own device and is never sent to our server. More in the privacy policy.
Is Alternate & Mix free to use?
Yes. Alternate & Mix is free, with no account to create and no software to install — open the page in a modern browser and start.