Collate Duplex Scans - Interleave Front and Back Pages
Scanned all the fronts, then all the backs? This tool weaves them back into the right order: front 1, back 1, front 2, back 2 and so on.
How to use Collate duplex scans
- Click Select and choose your PDFs, or drop them anywhere on the page.
- Set the options in the panel on the right and arrange the order with the arrows.
- Click Collate duplex scans. The result is created in your browser and downloads straight away.
Tip: Most scanners feed the back sides last page first; keep the default "Last page first" option for those.
Frequently asked questions
Can I use one file instead of two?
Yes. If one PDF holds all fronts followed by all backs, add only that file and it is split in the middle automatically.
Is Collate duplex scans free?
Yes. All 48 tools on Chutki are free to use, with no sign-up and no watermark added to your files.
Are my files uploaded to a server?
No. Your files are processed inside your own browser and never leave your computer, which makes the tool suitable for confidential and client documents.
Does it work on mobile?
Yes. It works in current versions of Chrome, Edge, Firefox and Safari on computers, tablets and phones. Very large files work best on a computer.