BlockPoster.ai
An online tool that splits any image across multiple sheets for printing and assembles them into a large poster, with AI-generated poster images also available.
About BlockPoster.ai
BlockPoster.ai is an online poster-making tool: after uploading an image, you can split it across multiple sheets for printing and assemble them into a large poster, with AI-generated poster images also available. The free plan lets you export a single-page poster PDF without creating an account, supporting up to 5 sheets at 150 DPI with a small brand watermark; a paid subscription offers unlimited watermark-free high-resolution PDF exports at up to 300 DPI (depending on the source image's detail), supports up to 10 sheets, and includes batch ZIP export. Photos stay on the user's device, and projects and print presets are saved locally. In addition to subscriptions, the website offers three one-time purchase packs, ideal for users who don't want recurring charges.
Best for
Best use cases
Want to print a photo or image as a large wall poster, printing it across pages on a home printer and assembling them
Want to generate an image with AI and then turn it into a printable poster
Occasionally make a poster without subscribing, preferring to pay per use for high-resolution exports
Need to batch-export multiple images as high-resolution PDFs in a single ZIP download
Features
Multi-sheet poster PDF
Upload an image, split it across multiple sheets for printing, with crop marks and assembly guides, supporting 5 paper sizes.
Photos stay local
Photos stay on the user's device, and projects and print presets are saved locally.
AI image generation
Paid plans offer AI image generation, with AI generation and high-resolution export using separate, independent quotas.
High-resolution watermark-free export
Subscribers can export watermark-free high-resolution poster PDFs without limits, at up to 300 DPI when the source image allows.
Pros
- Offers a genuinely usable free plan — export printable PDFs without registering an account
- Photos stay on the user's device, with projects and print presets saved locally
- Supports 5 paper sizes, with crop marks and assembly guides included
- In addition to subscriptions, offers one-time purchase packs, ideal for users who don't want recurring charges
Cons
- The free version exports with a small brand watermark and supports at most 5 sheets and 150 DPI
- AI credits refresh monthly and do not roll over to the next month
- The free version does not include AI credits or batch ZIP export
Pricing Plans
Starter block poster plan
- 20 AI credits / month · 10 AI images / month
- Unlimited HD poster PDFs · no watermark
- Up to 10 sheets across · all 5 paper sizes
- Up to 300 DPI (source detail permitting)
- Splitting and resizing cost 0 AI credits
- Batch up to 10 files in one HD ZIP
- Local projects and print presets
- AI credits refresh monthly; no rollover
One-time pack
- 1 source-image HD unlock
- 2 AI credits
One-time pack
- 5 unlocks
- 20 credits
Bundle
- 20 unlocks
- 80 credits
* Pricing information is for reference only. Please refer to the latest announcement on BlockPoster.ai's official website.