# Rasterbator

> Rasterbator is a free browser-based poster maker that turns images and PDFs into multi-page printable posters with halftone and raster effects.

Rasterbator runs the main image workflow in the user's browser. Uploaded images and PDFs are processed with client-side canvas, Web Workers, PDF extraction, and PDF/ZIP export code. Main-tool uploads are not sent to a server. Public Gallery submissions are separate and require explicit user consent.

The site is a static, ad-supported SEO tool site at https://rasterbator.org. English uses root URLs. Localized versions use `/zh/`, `/es/`, `/fr/`, `/tr/`, `/de/`, `/pt/`, `/pl/`, and `/it/`; Portuguese content targets Brazilian Portuguese while keeping the `/pt/` URL.

## Core Tools

- [Rasterbator poster maker](https://rasterbator.org/): Main six-step tool for uploading an image or PDF, choosing paper, size, style, color, and exporting a printable multi-page PDF or ZIP.
- [DPI Calculator](https://rasterbator.org/dpi-calculator/): Calculates print DPI, maximum print size, and quality guidance from pixel dimensions and print dimensions.
- [Wall Planner](https://rasterbator.org/wall-planner/): Estimates poster page counts from wall size, paper size, and layout goals, then passes settings into the main poster maker.
- [Wall Art Generator](https://rasterbator.org/wall-art-generator/): Starts poster creation from wall-art style presets.
- [Image Cropper](https://rasterbator.org/image-cropper/): Local browser tool for cropping JPG, PNG, and WebP images before using them in the poster maker.
- [Image Resizer](https://rasterbator.org/image-resizer/): Local browser tool for resizing images by pixels or percentage before poster creation.
- [Image Upscaler](https://rasterbator.org/image-upscaler/): Local browser tool for enlarging and sharpening images before poster creation.

## Content And Examples

- [Templates](https://rasterbator.org/templates/): Preset poster styles and use-case templates that can be opened in the main tool.
- [Printing Tips](https://rasterbator.org/guides/printing-tips/): Practical guidance for printing, trimming, aligning, and assembling multi-page posters.
- [Blog](https://rasterbator.org/blog/): Tutorials, comparisons, and search-focused articles about rasterbation, halftone posters, large poster printing, and related tools.
- [Gallery](https://rasterbator.org/gallery/): Public gallery of user-submitted poster examples that have gone through moderation.

## Site Reference

- [FAQ](https://rasterbator.org/faq/): Answers about supported files, print quality, privacy, paper sizes, and common workflow questions.
- [Privacy Policy](https://rasterbator.org/privacy/): Explains browser-local processing for the main tool and the separate public Gallery submission flow.
- [About](https://rasterbator.org/about/): Short overview of Rasterbator and its purpose.
- [Terms](https://rasterbator.org/terms/): Terms for using the site and submitted content.
- [Sitemap](https://rasterbator.org/sitemap.xml): Complete machine-readable list of localized pages, templates, and blog posts.

## Not Documentation

- `/api/*` endpoints are for Gallery runtime behavior, not public documentation.
- `/admin/gallery/` is an admin review surface and is not a public reference page.
- `/_next/*` files are build assets and should not be used as content sources.