Turn a PDF into a fold-and-staple booklet
Booklet imposition rearranges a PDF so that printing it double-sided, folding the whole stack once and putting two staples through the spine yields a book that reads front cover to back. Sheet 1 comes out carrying the back cover beside the front cover; the last sheet is the middle spread. Drop a PDF in below — it is rearranged on your machine and never uploaded.
The file is rearranged on this machine and never uploaded. First time on a new printer, on one sheet’s worth of scrap and check which way your duplex flips before committing real paper.
What it did to your pages
A saddle-stitched booklet needs the outermost sheet to carry the first and last pages, the next sheet the second and second-to-last, and so on inward — because that is where those pages physically land once the stack is folded. Your page total is padded up to a multiple of four with blanks (they end up as the inside of the back cover, which is where blanks belong), then each side of each sheet is paired outermost-first. An eight-page book comes out as two sheets:
| Sheet | Side 1 (printed first) | Side 2 (the back) |
|---|---|---|
| 1 — the cover sheet | 8 | 1 | 2 | 7 |
| 2 — the middle spread | 6 | 3 | 4 | 5 |
Read the pairs as left | right on the printed side. Fold both sheets together and staple, and the pages run 1 to 8 with no cutting at all.
Booklet, 2-up, or a bound book?
| Your book is… | Use | Why |
|---|---|---|
| Thin — a zine, a program, a short story, up to roughly 60 pages | Booklet imposition | One fold, two staples, no cutting, no glue. The cheapest binding there is. |
| Longer, and you want to print it on a home or office printer | 2-up cut-stack imposition | Two pages per side, one cut through the stack. Scales to hundreds of pages on a duplex printer. |
| Longer, and you want it to live on a shelf | A shop-bound book | Perfect or case binding needs a binder, and a spine sized to the page count — that is a shop's job. |
The honest limit: creep
Fold a thick stack and the inner sheets have further to travel round the fold, so the inner leaves poke out past the cover — creep. Imposition software sold to print shops compensates by shrinking inner pages a fraction at a time; this tool does not, by design — misjudged shingling is worse than none for a home job. Below a dozen sheets it is invisible. Past it, trim the open edge flush after stapling, or move to cut-stack or a bound book.
Questions people actually ask
Does my PDF get uploaded anywhere?
No. The file is read into your browser's memory, rearranged there, and handed straight back as a download. It never leaves your machine — you can watch the network tab.
Why did my page count go up?
A booklet needs a page count divisible by four, because every sheet carries four pages once it is folded. The tool pads the total with blanks, which land on the inside of the back cover where nobody reads.
What paper do I print it on?
Whatever your printer has; the imposition does not care. For a booklet that opens flat and stays stapled, 100–120 gsm is the sweet spot. Thin copier paper folds thinnest; card covers can be printed as a separate one-sheet booklet of the same length and wrapped around.
Can I make a booklet bigger than my printer's paper?
Yes, if your printer driver can scale. Print the imposed sheets at a reduction — the booklet proportions survive scaling exactly, they just end up smaller. For a true A5 booklet from A4 sheets, start from A5 pages and print the imposed file at actual size.
Is there a page limit?
The tool will happily impose hundreds of pages, but a saddle-stitched booklet past roughly 60 pages stops being a good idea — creep and staple strain both bite. That is a job for the cut-stack route or a bound book, not a bigger fold.
If the book you're imposing is a WhatsApp chat, this site makes those.
Make the book — freeThis is one of the tools — or see everything we’ve written.