Alternate and mix PDF pages

Take pages one from each file in turn. The quick fix when your scanner gives you fronts and backs as two separate PDFs.

FreeNo sign-upFiles stay on your device
Add two or more PDFs. Pages are taken one from each file in turn.

Nothing is uploaded. Your files stay private.

Popular uses

Opens the tool with the right settings already chosen.

How to combine odd and even page scans

Three steps, about ten seconds.

  1. 01

    Add your PDFs

    Drop two or more files. Drag them into order: file A comes first.

  2. 02

    Reverse if needed

    Turn on Reverse order for a file scanned last page first.

  3. 03

    Download

    Press Mix PDFs to save the combined file.

Good to know

Many office scanners only scan one side. The usual trick is to scan all the fronts, turn the stack over and scan the backs, which gives you two PDFs: pages 1, 3, 5 and pages 6, 4, 2. Mixing them puts every page back in order.

Pages are taken one from each file in turn. When one file runs out, the rest of the others follow. Reverse order flips a file before mixing, which is what you need for backs scanned in reverse.

Pages are copied as they are, so nothing loses quality. To join files one after another instead, use Merge PDF.

Frequently asked questions

How do I combine front and back scans into one PDF?

Add the fronts file, then the backs file, and turn on Reverse order for the backs, or open the Double-sided scan preset, which does it for you.

What's the difference from Merge PDF?

Merge puts whole files one after another. Alternate & mix takes one page from each file in turn.

Can I mix more than two files?

Yes. Pages are taken from each file in the order shown.

Are my PDFs uploaded?

No. Pages are interleaved by your browser, so the files stay on your device.