Duotone Poster Maker — Turn Photos into Bold Two-Color Posters
Upload one photo and get a high-impact duotone poster in 4:5 portrait. The AI maps every tone into two contrasting inks — perfect for gig flyers, brand campaigns, and statement prints.
Turn a photo into a Duotone Poster in three steps
Upload, prompt, render. The composer locks the 4:5 portrait ratio so the output is ready to post or print.
Start with a strong photo
Portraits, products, buildings, and landscapes all work. The AI needs clear tonal separation to build the two-color map.
Name your two inks
The default prompt asks for two contrasting colors and no gradients. Swap the colors, add texture, or name a print style to match the brief.
Get a 4:5 duotone print
Locked to 4:5 portrait. The output is a flat, poster-ready graphic that scales cleanly for web, print, or merchandise.
See the transformation
A full-color photo becomes a two-ink poster — flat shapes, high contrast, screen-print impact.
Duotone Poster examples
Case gallery — examples from the first batch of Poster Studio outputs.
Multi-panel · blue and orange
Graphic pattern · two inks
Where duotone posters dominate
Campaigns, events, and brands that need instant graphic recognition.
Gig posters, festival lineups, and album art that read from across a room.
Launch visuals that lock a product to two signature brand colors.
Magazines, reports, and Substack headers with a bold, contemporary graphic feel.
T-shirt and tote designs that stay cheap to screen-print while looking premium.
How to own the two-color look
Prompt controls that keep the poster graphic rather than photographic.
Name colors with clear separation — warm vs cool, light vs dark — so the subject stays readable.
Include "no gradients" to force flat color shapes and screen-print logic.
Request "screen-print texture" or "risograph overprint" for believable ink behavior.
Ask for "minimal shapes" or "graphic silhouette" to push the image toward logo-like clarity.
What Duotone Poster Maker always includes
The default style enforces a strict two-color graphic system. Override colors and texture in the prompt.
Two-color map
Every tone in the photo is remapped to just two inks, creating maximum contrast.
Flat shapes
No gradients, no soft shading — only hard-edged graphic forms.
Screen-print texture
Subtle ink texture makes the output feel physically printed.
High contrast
Shadows and highlights are pushed to opposite inks so the image pops.
4:5 portrait crop
Locked vertical ratio ideal for posters, social ads, and merch.
Frequently Asked Questions
What does Duotone Poster Maker do?
It turns one photo into a high-impact duotone poster — every tone is remapped into two contrasting inks with flat graphic shapes and screen-print texture in 4:5 portrait.
What photos work best?
Portraits, products, buildings, and landscapes with clear tonal separation work best. The AI needs distinct lights and darks to build a readable two-color map.
How do I pick the two colors?
Name the two colors directly in the prompt, such as "electric blue and orange" or "navy and gold." Add "no gradients" to keep the result flat and poster-ready.
What resolution is the output?
The tool renders at HD resolution in 4:5 portrait. The flat graphic output scales cleanly for web, print, or merchandise.
Is it free to try?
Yes — new accounts get free credits on signup. Each render costs image-model credits; no subscription is required to start.
Make your first duotone poster
Upload one photo, name two colors in the prompt, and generate a 4:5 high-impact duotone poster in under a minute. Free credits on signup, full commercial license.
No credit card · Free credits on signup · 4:5 portrait output · Commercial license