CHECK A TEST PRINT FIRST
Make a booklet PDF
Arrange your PDF into a folded booklet. One file, up to 20 MiB and 1–64 pages.
Candidate under review. Content previews render the exported PDF. Real-browser, offline and no-transmission checks are still pending. This is not marked ready for public release or physically print-validated.
01 · File and layout
One file · Up to 20 MiB · 1–64 pages · Static PDFs only
02 · Review layout
Choose a file to review sheet count, added blanks and output sides.
| Sheet | Side | Left | Right |
|---|
Prepare manual duplex in this session
After building your booklet, confirm a two-sheet test here to split fronts and backs. The source session does not carry over when you navigate to another page.
01 · Test with two sheets
Session not checked yet. Without a source session, only test sheets are available.
SHEET A/B, two physical sheets, are needed to check order. Before loading, mark one side lightly in pencil and record how you loaded them.
Compare TOP, corners 1–4 and front/back labels. Test the back using the same refeed method.
02 · Confirm what you observed
| Order | Front | Back |
|---|
How is it arranged?
Left binding, one signature. Blank pages are added at the end to reach a multiple of four. For 8 pages: [8 | 1], [2 | 7], [6 | 3], [4 | 5]. For 5 pages: [blank | 1], [2 | blank], [blank | 3], [4 | 5].
N = 4 × ceil(page count / 4). You need N / 4 sheets and N / 2 output sides. Each visible page area is fitted proportionally and centered. Mixed page sizes are fitted independently, so their original relative sizes may change.
Print settings and limits
The output is already imposed. Turn off printer booklet and extra 2-up modes. Print at actual size / 100%, landscape, one PDF page per side. For a typical landscape booklet, test short-edge flip first.
More than 32 pages can make a thick fold. Right binding, multiple signatures, creep correction and trimming/feed correction are not supported. Encrypted or damaged files, forms, annotations, signatures, invalid boxes/rotations and UserUnit ≠ 1 are unsupported. Make a flattened copy in the original app.
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Privacy and file handling
PDF processing and previews run in this browser. Document files, names, contents and metadata are not sent to a server or saved in browser storage. There are no ads or third-party scripts in the processing area. Static-site access may still produce server logs.
Your original is unchanged. Output is for printing; link, bookmark, accessibility-tag and signature preservation or secure removal of hidden data is not guaranteed. Even a small scanned file can use substantial memory. Physical-printer and all-browser validation are not claimed.