Choose a file to convert. It's processed locally — never uploaded. Tip: add several files to convert them all at once.
Settings
Result appears here after you select
{ } How to use
- Add your PDF, choose a sheet size, then Process.
- Print double-sided (flip on the short edge), fold the stack in half, and staple along the fold.
{ } How it works
Booklet (Saddle-Stitch) works on the file you upload. Adjust the options, then select Process ▸ and it runs entirely in your browser — nothing is uploaded to a server — then shows the result in the Output panel.
Inputs
- PDF file — upload a file (.pdf); it is read locally in your browser
- Sheet size — choose one — A4 landscape, Match source page size (default: A4 landscape)
Output
A downloadable PDF file — use the Download button in the Output panel.
{ } Common uses
- Turn a document into a fold-and-staple booklet or zine.
- Print a program or leaflet on the fewest sheets.
{ } Limitations
- Pages are imposed two-up in saddle-stitch order; the page count is padded to a multiple of 4 with blank slots.
- It only rearranges pages for printing; the content itself is not changed.
{ } FAQ
Is my data uploaded to a server?
No. Everything runs locally in your browser — your files never leave your device.
Can I process more than one file at once?
Yes — add several files and they’re all processed and downloaded together as a ZIP.
Is this tool free?
Yes — it’s completely free and needs no sign-up.
Why did blank pages appear?
Saddle-stitch binding needs the page count to be a multiple of 4, so up to three blank pages are added at the fold.
How do I print it?
Print double-sided flipping on the short edge, then fold the whole stack in half and staple along the fold.