PDF Booklet Maker

Reorder a PDF into booklet imposition order, so it reads correctly after double-sided printing and folding. Runs entirely in your browser.

Arrange pages for booklet printing

Upload a PDF and this tool reorders its pages into standard booklet imposition order.

Drag & drop a PDF here, or click to browse
Works with a single PDF file.

    Booklet PDF ready

    Original pages
    0
    Blank pages added
    0
    Sheets to print
    0
    Your file is processed locally in this browser tab using pdf-lib. It is never uploaded to Calcooo or any server.

    How to use this tool

    1. Drag and drop your PDF into the box above, or click to browse and select it.
    2. Press Create booklet — pages are reordered into booklet imposition order, with blank pages added automatically if needed.
    3. Click Download booklet.pdf to save the result to your device.
    4. Print the downloaded file 2-sided using "flip on short edge" (or your printer's equivalent duplex setting), with 2 pages per sheet, then fold the stack in half.

    FAQ

    Frequently asked questions

    Is my PDF uploaded anywhere?

    No. Your file is reordered entirely inside your browser using pdf-lib — it never leaves your device.

    How does booklet printing work?

    Each physical sheet of paper holds 2 pages per side (4 pages total per sheet). When the stack of printed sheets is folded in half, the pages need to be in a specific non-sequential order so they read correctly once folded. This tool reorders your PDF into that order.

    What page count works best?

    A multiple of 4 pages folds most cleanly. If your PDF isn't a multiple of 4, this tool automatically adds blank pages at the end to round up, so the booklet still folds correctly.

    Do I still need special printer settings?

    Yes — after downloading, print the result 2-sided with your printer's "flip on short edge" (or equivalent duplex) setting, and 2 pages per sheet if your print dialog offers that layout option. The exact wording varies by printer.