How are pages combined?

Pages are interleaved from two source PDFs into a single download.

What if the PDFs have different lengths?

Remaining pages from the longer file are appended after interleaving finishes.

Does mix upload my files?

No. Both PDFs stay in your browser.

Short answer

Mix PDFs runs entirely in your browser. Interleave pages from two PDFs into one — alternate odd/even pages. No account, no watermark, and the file never leaves your device.

Stays on your device·No upload·No account·No watermark·Offline after install·How it works Methodology Privacy

Mix PDFs

Interleave two PDFs into one — useful for duplex scans or odd/even stacks.

Pick the first PDF — its pages go into the odd positions (1, 3, 5, …).

Drop a file or browse

Drop the first PDF

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About this tool

Interleave pages from two PDFs into one — alternate odd/even pages. Runs entirely in your browser — no upload, no watermark, no account.

How to use Mix PDFs

1Open your file for Mix PDFs (or continue a session).
2Choose options if the tool offers any.
3Click Mix, then download the result.

You need

One or more PDF files
Unlocked PDF (password-protected files: unlock first)

Frequently asked questions

How are pages combined?
Pages are interleaved from two source PDFs into a single download.
What if the PDFs have different lengths?
Remaining pages from the longer file are appended after interleaving finishes.
Does mix upload my files?
No. Both PDFs stay in your browser.