Hey Product Hunt 👋 I built Rasterbator.io after helping my kid with a school project. I needed to print a large poster on regular paper, but the tools I found mostly asked how many pages I wanted instead of letting me set the actual finished size. So the workflow here is simple: **Choose your paper → set the poster size → download a tiled PDF → print and assemble.** It supports common paper sizes, custom margins and overlap, cut guides, and page labels. Images are processed locally in the browser, with no signup or watermark. I also added a halftone style inspired by the shader work I like from **Paper Design**, so Rasterbator can be used for both straightforward poster printing and more stylized results. Would love to hear how the sizing and assembly workflow feels, especially if you've used similar tools before.

Rasterbator.io

Turn image into a giant poster/wall art with a home printer

Turn image into a giant poster/wall art with a home printer