How does the automatic split work?

The tool reads the actual dimensions of your PDF, then calculates the number of columns and rows needed to cover the poster with A4 or A3 sheets, at 100% scale whenever possible.

Are my files sent to a server?

No. The splitting happens entirely in your browser; no data is transmitted to a server.

Can I manually adjust the number of sheets?

Yes, the columns and rows fields can be edited freely after the automatic calculation, to force a custom grid.

How do I assemble the printed sheets?

Print each tile at 100% scale (disable your printer's automatic scaling), trim the white margins, then assemble the sheets edge to edge in grid order.

Which paper sizes are supported?

A4 and A3, in portrait or landscape orientation. A3 requires a compatible printer; otherwise choose A4.

Can I download a single tile instead of the whole batch?

Yes, click a tile in the preview to download only its PDF, or use "Download all" to get the full set as a ZIP file.

PDF

Poster Splitter

Split a large-format PDF into multiple A4 or A3 sheets to print and assemble.

⊡

Drop your PDF here

or click to select · .pdf files only

Paper

Orientation

Grid

cols × rows

Preview — click a tile to download it

Load a PDF to get started

Local processing: no data transmitted

This tool is free, no account or ads required. If it was useful to you, a small donation helps cover hosting costs.

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This tool splits a large-format PDF (poster, plan, banner) into multiple A4 or A3 sheets to print and assemble, directly in your browser. No data is transmitted to a server. The cutting grid is calculated automatically from the document dimensions and the chosen paper size, with a visual preview before download.

Use cases

A0 or A1 poster without a large-format printer: split it into A4 or A3 sheets printable on a home printer, then assemble them.
Technical plan or diagram: print an architectural plan or network diagram across several sheets to view it at full size.
Banner or roll-up for an event: prepare a large-format visual for a trade show or exhibition.
Wall decoration or mural poster: enlarge an image or PDF poster into several sheets to cover a whole wall.

Frequently asked questions

How does the automatic split work?: The tool reads the actual dimensions of your PDF, then calculates the number of columns and rows needed to cover the poster with A4 or A3 sheets, at 100% scale whenever possible.
Are my files sent to a server?: No. The splitting happens entirely in your browser; no data is transmitted to a server.
Can I manually adjust the number of sheets?: Yes, the columns and rows fields can be edited freely after the automatic calculation, to force a custom grid.
How do I assemble the printed sheets?: Print each tile at 100% scale (disable your printer's automatic scaling), trim the white margins, then assemble the sheets edge to edge in grid order.
Which paper sizes are supported?: A4 and A3, in portrait or landscape orientation. A3 requires a compatible printer; otherwise choose A4.
Can I download a single tile instead of the whole batch?: Yes, click a tile in the preview to download only its PDF, or use "Download all" to get the full set as a ZIP file.

Go further

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