# Interleave two PDFs (double-sided scans)

Combine front and back scans into one correctly ordered document: 1 front, 1 back, 2 front, 2 back, and so on.

Open: https://pdfjade.com/interleave-pdf

## How to interleave two PDFs (double-sided scans)

1. Add the PDF with the front sides, then the PDF with the back sides.
2. Tick the option if the back pages came out in reverse order.
3. Press Interleave and download.

## At a glance

| | |
| --- | --- |
| Where files are processed | In your browser. The file is never uploaded. |
| How long files are kept | Nothing is kept on a server, because nothing is sent to one. |
| Free limits | No caps on files, pages or tasks. Your device's memory is the practical limit. |
| Account | None |
| Price | Free |
| Ads | None |
| Offline option | No app. Works in any current browser, on desktop and phone |

## Private by design

Your PDF is opened and rewritten inside your browser. It is never sent to a server, so confidential files are as safe as they are on your own computer.

## Good to know

If the result is out of order, toggle the reverse option and run it again.

## Questions

### What if one file has more pages than the other?

The extra pages are added at the end.

### Does it work with scans from a feeder?

Yes. Many single-pass scanners create two files for the two passes, which is exactly what this combines.

## Related tools

- [Pages per sheet](https://pdfjade.com/n-up-pdf)
- [Remove blank pages](https://pdfjade.com/remove-blank-pages)
- [Split pages in half](https://pdfjade.com/split-pdf-pages-in-half)
- [Compress PDF](https://pdfjade.com/compress-pdf)
- [JPG to PDF](https://pdfjade.com/jpg-to-pdf)

Source: https://pdfjade.com/interleave-pdf