KEEP THIS BESIDE YOUR PRINTER
A little care. A better fold.
The tool arranges the PDF. Your printer still needs the right paper, scale, and duplex settings. Start with a small test before making copies.
Booklets and signatures
A finished page is one side you read. A sheet is a physical piece of paper. A PDF output face fills one side of that sheet. Each folded duplex sheet holds four finished pages.
- Use the output file's paper size, in landscape. Choose Actual size / 100%, one PDF page per side, normal order. Turn off your reader's booklet or multiple-pages-per-sheet mode.
- Automatic duplex: use the flip edge named in the file and print card. The PDF already accounts for that setting. Manual duplex: print FRONT single-sided, reload exactly as tested, then print BACK single-sided in normal order. Do not reverse the back file again.
- Fold each sheet in half. Within a signature, nest the lower-numbered sheets outside higher-numbered sheets. The lowest sheet number is the outside wrapper.
- A booklet has one nested group. A bound book has several groups: stack signatures in their numbered order; do not nest one signature inside another.
- Check the cover, center spread, last page, margins and reading order. Staple or sew only after these checks.
A thick group can bulge and shift its inner leaves outward. Paper thickness, grain and folding affect the result. Try fewer sheets per signature; this tool does not estimate creep or choose a sewing method from paper weight.
One sheet, eight little pages
This format is printed on one side only. The top row intentionally looks upside down before folding. The diagram below is a separate guide; no marks are drawn over your artwork.
- Print at 100%. Crease the sheet into four equal columns and two equal rows, then unfold.
- Cut only the middle half of the horizontal center crease: from the first vertical fold to the third. Leave the outside quarters intact.
- Fold along the long horizontal crease, keeping the printed pages on the outside. Push the two short ends toward each other so the slit opens into a diamond.
- Bring the four sections together, then collapse the pages around the cover (page 1). Check that pages 1–8 read in order.
For Letter, each finished page is 2.75 × 4.25 inches before margins. Small text may become unreadable; check the scale shown by the tool and print a sample.
Further demonstration: Austin Kleon's single-sheet zine walkthrough. BMCC's zine-making resources distinguish this cut-fold format from a stapled booklet.
Find the symptom. Make one change.
| What happened | Try next |
|---|---|
| Backs are upside down | Run the two-sheet test. Report downward arrows; follow the corrected flip/rotation setting and retest. |
| Both passes printed on one side | Change which face is presented when reloading. Repeat the test; do not mark it tested yet. |
| Numbers are paired with the wrong sheet | Check both test sheets. The manual flow can reverse the back file. Keep the print dialog in normal order. |
| Artwork is too small | Check actual scaling in Arrange. Reduce margins or prepare the source at the finished page size. Mini pages are inherently small. |
| Edges were cut off | Increase the reserved outer margin, regenerate, then print at 100%. Printer non-printable edges vary; test on your device. |
| A map no longer faces itself | Inspect Reading order. Facing inner pages pair even→odd. Inserting a blank before the map changes the pairing. |
| One page was damaged / a batch stopped | Use Repair a misprint. Find the source position and reprint its whole physical sheet, or explicitly choose one face for recovery. The tool cannot know how many sheets printed successfully. |
| Unexpected blank pages | Review inserted versus padding blanks. Folio groups require multiples of four. Source blanks are preserved. |
What this version handles
Sequential, static PDFs; equal left/right reading spreads only when explicitly confirmed; Letter/A4; left-to-right folio booklets and signatures; one fixed 8-page mini fold. Source pages are embedded as PDF content rather than screen images. Inspect fonts and artwork in the output before printing.
Encrypted, damaged, zero-size pages, nonstandard page units, forms and visible annotations require a fresh flattened export from the source application. Link interactions are omitted. This is not a PDF repair, OCR, EPUB editor, commercial preflight, color-management or cover-spine tool. Keep an original copy of your source.
The current guardrail is 30 MB and 400 source pages. This is a conservative application limit, not a guarantee for every complex PDF or device. Splitting the output into batches does not reduce the memory needed to open the source. Cancel terminates processing; choose Arrange again to reload your source.
Files are processed locally. Saved settings use this browser's local storage only; PDF content and selected page ranges are not persisted. There are no analytics, third-party fonts, or remote document uploads. Reloading the page discards the current PDF.
Desktop Chrome is the initial tested browser. Other browsers and real printer workflows need validation. A successful file export is not proof of a successful physical print. Real target-user testing is still pending.
Built with PDF-LIB, PDF.js, and fflate. PDF-LIB license · PDF.js license · fflate license.