About
Big posters, zero hassle
Block Poster is a free tool that turns any image into a printable, multi-page PDF you tape together into a giant poster. It runs entirely in your browser — your images are never uploaded.
Our mission
Make large-format printing accessible to everyone. No expensive software, no design skills, no account — just upload, split, and print.
How it works
Upload an image, choose how many pages wide your poster should be, pick a paper size, and download a PDF. Each page is one tile of the picture, printed at 100% scale and assembled with alignment marks.
Privacy first
Your image never leaves your device. The splitting happens locally in your browser, so there's nothing to store, sell, or leak.
Always free
No paywall, no watermark, no signup. Block Poster is free to use, in five languages.