Alternate & Mix PDF

Merge PDFs by alternating their pages, ideal for double-sided scans

Choose files

Drop your PDFs here

Select two or more files to mix their pages

Combine two or more PDFs by alternating their pages. Perfect for joining front and back scans into one double-sided document.

How it works

How to alternate and mix PDF pages

01
Drop two or more PDFs into the upload area, or click to browse.
02
Put the files in order, for example front sides first, then back sides.
03
Turn on Reverse for any file scanned last page first, and set pages per turn if needed.
04
Click Mix PDFs and download your combined file.

Scan all the fronts, then all the backs, and mix them into one document with every page in the right place.

Reverse a file's page order, or take two or more pages from a file on each turn before moving to the next.

See the combined page order as thumbnails before you save. If one file runs out, the rest follow in turn.

Questions

How do I combine front and back scans?

Add the front sides file first and the back sides file second. If the backs were scanned from the last page, turn on Reverse for that file.

What happens if the files have different page counts?

Pages alternate until one file runs out, then the remaining pages of the other files are added in turn.

Can I mix more than two PDFs?

Yes. Add as many files as you like. Pages are taken from each file in the order they appear in the list.

How is this different from Merge PDF?

Merge PDF adds whole files one after another. Alternate & Mix interleaves their pages, one page or a few pages at a time.

Is Alternate & Mix PDF free?

Yes. It is free to use, with no sign-up and no watermarks added to your files.