PosterSize AI
PosterSize combines AI-powered poster generation with a practical catalogue of poster dimensions. Describe the event, brand, product, or message you want to communicate, choose an art direction such as editorial, minimal, vintage, bold type, illustration, or cinematic, select a canvas and resolution, and generate a polished poster in seconds.
The platform supports one-time credit packs without subscriptions or registration requirements, and failed poster jobs are automatically refunded. It also provides references for print, social media, and presentation formats, including A4, A3, A2, A1, US Letter, 18 × 24 inches, 24 × 36 inches, Instagram posts, Instagram Stories, LinkedIn posts, and presentation slides. Each format includes dimensions, aspect ratio, region, or intended use.
PosterSize also offers practical guidance on viewing distance, purpose, ratio, bleed, trim, safe areas, paper stock, colour profiles, platform ratios, readable typography, and testing digital layouts at phone size.




