Saddle-stitch booklet calculator
Page count in, folded sheets out — and exactly how many blanks to add to reach a multiple of 4.
7 folded sheets
△ Add 2 blank pages to reach a multiple of 4.
Saddle-stitch imposes 4 pages per folded sheet (2 per side), so the page count must be a multiple of 4. Perfect-bound and sewn bindings have their own signature rules — check with your printer.
FAQ
Why must a saddle-stitched booklet be a multiple of 4?
Each folded sheet carries four pages — two on the front, two on the back. Stitching folded sheets at the spine means pages come in groups of four, so the total must divide by 4.
What if my content isn’t a multiple of 4?
Add blank pages (usually at the front matter or end) to round up to the next multiple of 4. This tool tells you exactly how many to add.
How many sheets does my booklet use?
Folded sheets = total pages ÷ 4. A 28-page booklet runs on 7 folded sheets.
Does this apply to perfect binding?
No — perfect-bound and sewn bindings gather signatures differently (often multiples of 8 or 16) and only require an even page count. Check your printer’s signature size for those.
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