A poster is read from across a room by someone walking past. That gives it two requirements that most generated posters fail: the hierarchy has to work at a glance, and the type has to be exactly right, because a poster with a typo in the headline is a poster that got printed a hundred times with a typo in the headline.
TL;DR
- Generate the artwork, set the type in an editor. Generated text is unreliable and printing is irreversible
- On 8frame: Seedream 5 at 6 credits per direction, Reve at 34 for illustrative work
- Print resolution: get the spec from your printer first, then upscale to it. Topaz Image Upscale at 11 per 24MP block
- Design at thumbnail size. If the hierarchy fails small, it fails at distance
- Three levels of hierarchy maximum: what, when and where, or their equivalent
The type rule, which is not negotiable
Generated text inside an image produces wrong words, invented characters and spelling that changes between attempts. For a screen graphic that is annoying. For a print run it is a box of unusable paper.
Generate the artwork with no text at all. State it in the prompt. Leave a region visually quiet where type will sit. Then set the type in any editor with a real font.
This also gives you an editable file. Changing a date should not mean regenerating the poster.
If text genuinely must be integrated into the image (painted on a wall in the scene, on a sign within the artwork), Nano Banana Pro at 21 credits is the model to use, and you should still read it back from the image rather than trusting the prompt.
Hierarchy for a glance
Someone gives a poster about two seconds. In that time they should get one thing, and know where to look for the rest.
Three levels maximum:
- The one thing. The band name, the event, the message. Large enough to read across the room.
- The necessary detail. Date, venue, price.
- Everything else. Small, at the bottom, for people who have already stopped walking.
The test: shrink your design to thumbnail size and look at it. Whatever you can still read is your level one. If you cannot read anything, the hierarchy has failed, and it will fail at distance too.
Print resolution, done properly
This is where people get caught. The steps:
- Ask the printer for the spec first. Dimensions, resolution, bleed, colour profile, file format. Do not guess.
- Generate the artwork. Resolution at this stage is lower than print needs; that is expected.
- Upscale to the required size. Topaz Image Upscale at 11 credits per 24-megapixel block scales with output size, which makes it the right tool for large format. Clarity at 13 flat for smaller pieces.
- Set the type at full resolution, in vector, after the upscale. Never upscale type; it must be sharp and it will be if it is vector.
- Check bleed. Anything at the edge must extend past the trim.
What it costs
Canon 8frame prices, a credit is $0.01 at pack rate:
| Task | Route | Credits |
|---|---|---|
| Artwork direction | Seedream 5 | 6 |
| Cheapest volume exploration | Imagen 4 Fast | 4 |
| Highest fidelity single image | Imagen 4 Ultra | 12 |
| Illustrative, non-photoreal | Reve | 34 |
| Integrated text within the scene | Nano Banana Pro | 21 |
| Adjust an artwork | Flux Edit (FLUX.2 pro) | 7 |
| Upscale for print, per 24MP block | Topaz Image Upscale | 11 |
| Upscale for screen | Clarity image upscale | 13 |
A finished poster: twenty directions (120), two edits (14), one print upscale (11 or more by size) is about 150 credits, roughly $1.50, plus your time on typography.
What makes a poster work
One image, not a collage. Competing elements destroy the glance.
Contrast between the subject and the type zone. Type over busy artwork is unreadable; leave it quiet or place a plate behind.
Colour that survives print. Screen colours are brighter than print. Saturated screen designs disappoint on paper. If colour is critical, get a proof.
Real information, checked twice. Date, time, venue, price, website. The most common poster failure is not aesthetic.
Where generation genuinely wins
Exploration. Twenty directions for $1.20, which is more visual options than most people would ever commission.
Illustrative styles. Anything deliberately non-photographic, where Reve at 34 credits produces work that reads as illustration rather than as a photograph.
Atmosphere and texture. The visual mood of an event.
Series consistency. Once one poster works, variations for subsequent events are cheap edits at 7 credits.
FAQ
Can AI design a poster? It generates the artwork. Typography, hierarchy and print preparation are yours.
Why is the text in my generated poster wrong? Because generated text is unreliable. Set type in an editor.
What resolution do I need? Whatever your printer specifies. Get the spec before you start, then upscale to it.
How much does a poster cost to make? About $1.50 in credits for twenty directions and an upscale.
Generate the artwork, set the type, check the date twice. The 8frame canvas is free and unlimited, and generation is paid from $19/month.