Create printable tiled poster PDFs from images, PDFs, TXT, and Markdown.

Block Poster Pro is a versatile tool designed to transform your images, PDFs, TXT files, and Markdown documents into printable block posters. This innovative solution allows you to preview every page before export, select your preferred paper size (A4 or Letter), and export high-quality PDFs suitable for home or office printing.

• Image to Tiled Poster PDF: Turn any image into a printable block poster. Upload JPG, PNG, WebP, or GIF files (up to 3MB for the MVP) and process them locally in your browser for privacy.

• Multi-Format Support: Beyond images, Block Poster Pro extends its capabilities to PDFs, TXT files, and Markdown. Future updates plan to include web page and HTML inputs.

• Precise Print Setup: Gain practical control over your poster's final output with options for paper size (A4, Letter, A3, Legal, Tabloid, A2), orientation (portrait, landscape), pages wide, margins, overlap, image fit (contain, cover), and cut marks.

• Preview and Export: Visualize your poster layout with a real-time preview that shows the page count and dimensions. Download a watermark-free PDF for seamless printing and assembly.

• Browser-First Privacy: The current MVP processes images locally in the browser, ensuring your data remains private and secure.

• Easy Assembly: The generated PDFs include clear page labels and optional cut marks to simplify the trimming and assembly process, making it easier to create large wall prints.

Block Poster Pro aims to make the process of creating large, tiled posters simple and predictable, offering practical controls for a polished final result.