BlockPoster.ai splits a photo or AI-generated artwork into tiled PDF pages that any home printer can output and assemble into large wall art.
About
BlockPoster.ai is a browser-based tool that turns a single image into a wall-sized poster printed across ordinary sheets of paper. It handles the entire workflow — cropping, tiling, layout preview, and PDF export — so users can produce large wall art with nothing more than a standard home printer and tape.
The process works in three steps: upload a JPG, PNG, WebP, or PDF file (or generate original artwork with AI after signing in), set the paper size and page count, and download an already-tiled PDF with an assembly guide on page 1. Ordinary image uploads are processed locally in the browser rather than uploaded to a server. The service is operated by STARTIME TECHNOLOGY CO., LIMITED, and is available in English plus eight additional languages, including French, German, Spanish, Japanese, and Chinese.
Key Features
Pricing & Fees
- Pricing: Free single-image PDFs (150 DPI, small watermark, up to 5 sheets across, no sign-in). One-time packs that do not auto-renew: USD 4.99 for 1 HD unlock plus 2 AI credits, USD 14.99 for 5 unlocks plus 20 credits, and USD 39.90 for 20 unlocks plus 80 credits. Active subscriptions include unlimited HD downloads up to 300 DPI.
- Free tier: Users can download and re-export a watermarked basic PDF without creating an account.
- Local photo processing: Uploaded photos stay on the device; only AI generation sends prompts and explicitly chosen reference images online.
- Paid limits: Paid HD PDFs support up to 10 sheets across, versus 5 on the free tier.
Who It's For
BlockPoster.ai suits anyone who wants oversized prints without professional printing services. Teachers and classroom creators can build large maps and visual aids, home decorators can produce landscape wall art, and event organizers can create signage on standard paper. It also fits small businesses or offices that need occasional large visuals and prefer a low-cost, tool-free approach using equipment they already own.
FAQ
What is BlockPoster.ai?It is a free-to-start web tool that splits a photo or AI-generated image into tiled PDF pages printed on ordinary paper and assembled into a large poster.
Is there a free plan?Yes — free multi-page PDFs require no account, include a small brand watermark, and are capped at 150 DPI with up to 5 sheets across.
What platforms does it work on?It runs in any modern browser on desktop, laptop, tablet, or phone, with no installation; large images and long PDFs depend on device memory.
Do uploaded photos leave my device?No — ordinary images and PDF pages are processed locally in the browser; only the AI creation feature sends prompts and explicitly chosen reference images to online providers.
How do I print the poster correctly?Print each PDF page at Actual size or 100% (one page per sheet), test one sheet first, then trim the guides, align the overlap, and tape the sheets from the back.
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