How saddle-stitch page order works
A saddle-stitched booklet uses sheets printed on both sides, folded in half, nested, and stapled or stitched at the fold. A single folded sheet has four page positions. The outer face carries the back cover on the left and the front cover on the right for a left-to-right booklet. The inside of that sheet carries the page after the front cover and the page before the back cover.
Count all pages in the order they are meant to be read, including covers that are present in the document. The calculator rounds up to the next multiple of four and labels the added positions as blanks at the end. If you have a designed back cover that must stay last, place your blank pages inside the original document before that back cover, then enter the padded total.
Worked example for a 14-page program
A school has a 14-page program and wants to make a booklet using a single nested set of folded sheets. Four sheets provide 16 positions. If the school adds blanks at the end, the two outside positions shown as page 15 and page 16 are blank. If page 14 currently contains a back cover, edit the PDF to add two blanks before that cover and rerun the calculator with 16 pages. This makes the cover page 16 in the reading-order file.
| Sheet | Front, left / right | Back, left / right |
|---|---|---|
| 1 | 16 / 1 | 2 / 15 |
| 2 | 14 / 3 | 4 / 13 |
| 3 | 12 / 5 | 6 / 11 |
| 4 | 10 / 7 | 8 / 9 |
For a padded total of N pages, start the front of the outer sheet with N and 1. The back is 2 and N minus 1. Move in by two positions on each edge for the next sheet. Each row of the table represents one physical sheet and two printed sides. Multiply the number of sheets per copy by the number of copies, then account for test sheets and any setup spoilage.
Print a single proof before the run
Print a numbered copy on inexpensive stock. Fold the sheets, nest them, and read from the front cover through the back. If the back side is upside down, adjust the duplex flip setting and test again. Printer drivers can describe the same flip differently depending on the paper orientation and how the document is rotated. The folded proof tells you which setting your specific setup needs.
The calculator produces a page-order reference. Use a PDF imposition tool to rearrange the file itself, or let your printer or PDF reader handle booklet printing from the original reader-order PDF. If the file is already arranged in printer spreads, use ordinary duplex printing and check that a second booklet feature is disabled.
Common mistakes
Mixing a landscape sheet with a portrait page can shift the size or fold when the driver scales automatically. Measure the folded proof and verify the text and page numbers sit inside the usable area. Thick paper also pushes inner leaves outward. A production shop may adjust for creep or trim the finished booklet. Test your actual stock and finishing method before running a thick booklet.
Frequently asked questions
Does the front cover count as page one?
Yes. The front cover is the first page of the reading-order document, even when it has no printed page number.
How many sheets are needed for 60 copies of an eight-page booklet?
An eight-page booklet takes two sheets per copy, so allow at least 120 sheets before proofing and waste.
Can I use this for perfect binding?
Use it for one left-to-right set of nested sheets. Perfect binding, right-to-left formats, and multi-signature work need the printer’s own layout instructions.
How do I preserve a full-bleed cover?
Use the paper size and trim marks required by your printer, and make the cover artwork extend past the trim. Check sheet margins and reserve room to trim after folding if the job calls for it.
Reference: Adobe Acrobat booklet printing instructions.