Merge PDFs alternately – interleave front and back sides
Your scanner has no duplex feeder? Merge two PDFs alternately, page by page. The files are not uploaded.
Merge alternately – open in PDFMy now →
How it works
- Click “Merge alternately” and choose both PDFs, front sides first.
- Check the preview. If the back sides are the wrong way around, tap “Reverse second file”.
- Click “Save”.
Why PDFMy?
- Free – no registration, no subscription, no page limit.
- No upload – your files stay on your device (privacy-friendly under the GDPR).
- Everywhere – in the browser or as an app, on Windows, on the Mac and on your phone.
- From Paderborn – developed by Mentor GmbH (Mentor Group).
Frequently asked questions
What happens if one file has more pages?
The remaining pages of the longer file come at the end.
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- Help
Found a bug or have an idea? Report a bug – by email from your mail program, without documents.