jcasanas/booklet-maker repository overview

⁠Booklet Maker

A web app that rearranges PDF pages for double-sided signature printing. Upload a PDF and it produces an imposed PDF ready to print as a folded booklet.

Each physical sheet prints two source pages per side (2-up landscape), and sheets are nested into signatures for saddle-stitch binding.

⁠Quick start

docker run -p 5000:5000 jcasanas/booklet-maker

Then open http://localhost:5000⁠ in your browser.

⁠Usage

1. Open http://localhost:5000⁠
2. Upload your PDF
3. The app auto-calculates the optimal sheets-per-signature to minimise blank pages — or set it manually
4. Click Make Booklet to download the imposed PDF

⁠Print the output

1. Open the downloaded PDF in your printer dialog
2. Select Two-sided / Duplex printing
3. Set flip direction to Short Edge
4. Print in Landscape orientation
5. If there are multiple signatures, separate the sheets into groups before folding and nesting each

⁠How it works

A signature is a group of sheets folded and nested together. For a signature of S sheets (4S pages total), sheet i (numbered from the outside in) gets:

Blank padding is inserted just before the last source page so the back cover always lands in the correct position.

⁠Source

https://github.com/juancasa/booklet_maker⁠