How is this different from other online PDF tools?

Most online PDF tools send your files to a remote server for processing. This tool processes everything locally in your browser using client-side JavaScript. Your files are never transmitted to any server, which means your document content stays entirely under your control.

Are my PDF files uploaded?

No. Your files are read directly by your browser. Your files are never transmitted over the network. The tool works entirely within the browser tab you have open.

Can I verify that files are not uploaded?

Yes. Open your browser's developer tools (F12), go to the Network tab, and watch for any outgoing requests while using the tool. You will see no file data leave your browser. The site may record an anonymous page-view count, which never includes your files and can be disabled.

Does this tool work offline?

Yes, once the page has loaded the tool processes your files entirely in your browser; tool functionality needs no network connection. You can disconnect from the internet and continue using it.

What happens when I refresh the page?

Because nothing is stored on a server, refreshing the page clears your current session. Any files you had selected will need to be selected again.

Does this tool store my files?

No. Files are held in browser memory only for as long as the page is open. Closing or refreshing the page discards them. Nothing is written to disk by the tool, and nothing is sent to a server.

Can this tool unlock password-protected PDFs?

No. This tool does not attempt to remove or bypass PDF password protection. If you know the password, the Unlock PDF tool on this site can remove it locally; then this tool can process the file.

What technologies does this tool use?

This tool uses client-side JavaScript and pdf-lib to duplicate each page per grid cell and limit each copy's visible area to its tile — your files never leave your browser.

Does this tool use WebAssembly?

No. This tool uses client-side JavaScript and pdf-lib for local PDF structure editing. No WebAssembly is involved.

How do I split a page into poster tiles?

Pick a PDF with the file selector, choose a grid such as 2x2 or 3x3, then select the cut action. Each page becomes that many tile pages in reading order; save the result, print every page at full size, and tape the sheets together to form the poster.

How many tiles can each page be cut into?

The on-screen presets cover 1x2, 2x1, 2x2, and 3x3, and the underlying tiling supports up to 5 rows and 5 columns. A plain 1x1 grid is rejected since that produces no split, so you need at least two tiles.

Why does my tiled PDF sometimes still show the whole page in certain viewers?

Each tile is a copy of the page with its visible area (CropBox) narrowed to one grid cell rather than the content being physically cut, so the original artwork stays in the file. Viewers or tools that reset page boxes can reveal the full page again, which is normal for this CropBox-based approach.

Does the Poster Split tool cost anything to use?

Poster Split is completely free — no account, no sign-up, and no cap on how many PDFs you tile — and it always will be. Every page is cut into your chosen grid of tiles right inside your browser tab using pdf-lib, so your file never touches a server and your print-ready poster tiles are yours the moment the download appears.

Split a PDF Page into Poster Tiles Privately — In Your Browser

Select a PDF and a grid (e.g. 2×2); every page is cut into that many tiles in reading order, ready to print and assemble — all locally in your browser.

Quick answer

What it does: Select a PDF and a grid (e.g. 2×2); every page is cut into that many tiles in reading order, ready to print and assemble — all locally in your browser.
Free?: Yes — 100% free, no account or sign-up.
Files uploaded?: No — everything is processed in your browser.
Works offline?: Yes — once the page has loaded.
Best for: A teacher prints a single-page classroom diagram across four A4 sheets to make a wall-sized poster without a large-format printer.
Good to know: Tiles have no overlap or crop marks; leave a small white border when printing (most printers add one) to make assembly easier.

How it works

Select a PDF file from your device using the file picker.
The file is read into browser memory — no data leaves your browser.
Choose the grid: how many rows and columns to cut each page into.
pdf-lib copies each page once per tile and limits each copy's visible area to its grid cell, in reading order.
The tiled PDF is offered as a download — print each page at full size and assemble the sheets into a poster.

When to use this tool

A teacher prints a single-page classroom diagram across four A4 sheets to make a wall-sized poster without a large-format printer.
An event organizer tiles a banner design into a 3×1 grid of sheets to assemble a large hallway display with an ordinary printer.
An architect tiles a detailed site plan across a 2×2 grid so field workers can read fine measurements at full size on site.
Tiles have no overlap or crop marks, so leave a small white border when printing each sheet to make the assembly easier.

Frequently asked questions

How is this different from other online PDF tools?: Most online PDF tools send your files to a remote server for processing. This tool processes everything locally in your browser using client-side JavaScript. Your files are never transmitted to any server, which means your document content stays entirely under your control.
Are my PDF files uploaded?: No. Your files are read directly by your browser. Your files are never transmitted over the network. The tool works entirely within the browser tab you have open.
Can I verify that files are not uploaded?: Yes. Open your browser's developer tools (F12), go to the Network tab, and watch for any outgoing requests while using the tool. You will see no file data leave your browser. The site may record an anonymous page-view count, which never includes your files and can be disabled.
Does this tool work offline?: Yes, once the page has loaded the tool processes your files entirely in your browser; tool functionality needs no network connection. You can disconnect from the internet and continue using it.
What happens when I refresh the page?: Because nothing is stored on a server, refreshing the page clears your current session. Any files you had selected will need to be selected again.
Does this tool store my files?: No. Files are held in browser memory only for as long as the page is open. Closing or refreshing the page discards them. Nothing is written to disk by the tool, and nothing is sent to a server.
Can this tool unlock password-protected PDFs?: No. This tool does not attempt to remove or bypass PDF password protection. If you know the password, the Unlock PDF tool on this site can remove it locally; then this tool can process the file.
What technologies does this tool use?: This tool uses client-side JavaScript and pdf-lib to duplicate each page per grid cell and limit each copy's visible area to its tile — your files never leave your browser.
Does this tool use WebAssembly?: No. This tool uses client-side JavaScript and pdf-lib for local PDF structure editing. No WebAssembly is involved.
How do I split a page into poster tiles?: Pick a PDF with the file selector, choose a grid such as 2x2 or 3x3, then select the cut action. Each page becomes that many tile pages in reading order; save the result, print every page at full size, and tape the sheets together to form the poster.
How many tiles can each page be cut into?: The on-screen presets cover 1x2, 2x1, 2x2, and 3x3, and the underlying tiling supports up to 5 rows and 5 columns. A plain 1x1 grid is rejected since that produces no split, so you need at least two tiles.
Why does my tiled PDF sometimes still show the whole page in certain viewers?: Each tile is a copy of the page with its visible area (CropBox) narrowed to one grid cell rather than the content being physically cut, so the original artwork stays in the file. Viewers or tools that reset page boxes can reveal the full page again, which is normal for this CropBox-based approach.
Does the Poster Split tool cost anything to use?: Poster Split is completely free — no account, no sign-up, and no cap on how many PDFs you tile — and it always will be. Every page is cut into your chosen grid of tiles right inside your browser tab using pdf-lib, so your file never touches a server and your print-ready poster tiles are yours the moment the download appears.