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Mofumi PDF

Booklet Folding Simulator

Flip through a 3D preview of your folded booklet before printing.

100% Private — files never leave your device
Upload PDFDrop files here or click to chooseAccepted: PDF Files never leave your device

About this tool

Booklet Folding Simulator shows your PDF as a booklet you can flip through page by page, with realistic page turns. Check that covers, spreads and blank pages fall where you expect before you spend paper on a test print.

Below the book, a sheet diagram shows how pages are arranged on each printed sheet — front and back — for saddle stitching. It's a quick way to understand imposition, or to explain it to whoever does the printing.

When everything looks right, open PDF Booklet to create the print-ready file. Animations are turned off automatically if your device asks for reduced motion.

Engines: pdfjs

How to use

  1. 1

    Upload your PDF.

  2. 2

    Click the pages or use the arrow keys to flip through the booklet; switch binding side if needed.

  3. 3

    Check the sheet diagram, then click Make booklet to create the print file.

Use cases

  • Check the cover

    Make sure the front and back covers land on the outside of the booklet.

  • Spot blank pages

    See where padding pages will appear when the page count isn't a multiple of four.

  • Brief the printer

    Show a colleague exactly how the sheets should be printed and folded.

Frequently asked questions

Why are blank pages added?

Each folded sheet carries four pages, so a saddle-stitched booklet always has a multiple of four pages.

Can I flip with the keyboard?

Yes — use the left and right arrow keys.

Does it change my file?

No. It's a preview only; create the printable file with PDF Booklet.

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