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The reliable poster prompt formula
Write the asset type, audience, subject, composition, lighting, palette, format, and copy space. End with “no embedded final text” when you plan to add the real headline later. This produces a clearer visual brief than a list of fashionable style names.
Twelve prompt patterns
- Event announcement: editorial event poster, [subject], bold central silhouette, calm top area for date and venue, high contrast, vertical 2:3.
- Product launch: new [product] hero poster, product lower-right, dramatic directional light, clean left-side headline space, brand palette, 4:5.
- Restaurant special: seasonal menu poster, hero dish close-up, warm table light, generous upper margin for offer text, square.
- Music release: album key art, expressive abstract form, focal point off-center, dark negative space for title, cinematic color grade, square.
- Course launch: online course poster, confident subject, structured editorial grid, clear blank panel for course name, vertical.
Adapt the same structure for a film screening, community event, retail sale, app launch, sports match, book cover, or nonprofit campaign. The details change; the design logic stays stable.
Finish typography outside the image
AI lettering can be useful as a rough placement hint, but it is not dependable for final spelling, kerning, prices, or multilingual type. Generate the visual field first, then place the approved words in a real text layer. Use Vibart’s AI poster generator workflow to compare directions, keep text editable, and prepare social crops.
What makes a poster convert
At thumbnail size, the viewer should understand what it is, why it matters, and what to do next. Remove decorative elements that compete with the subject. Test the poster at the size people will actually see it, not only at full-screen desktop scale.
FAQ
Q: What is the biggest AI poster mistake?
A: Asking the model to solve art direction, exact typography, and final production in one image. Split those decisions into exploration and editable finishing.
Q: How can I make one poster fit multiple channels?
A: Choose a composition with flexible negative space, then create channel-specific crops and text hierarchy from the same approved direction.