Use the copy-and-paste prompt below to generate a 24×36 poster in ChatGPT, Midjourney, Canva or any AI image tool — sized correctly for print at 300 DPI, CMYK, with bleed. Fill in the [brackets], generate, and order it from FlyersATL for same-day or next-day pickup in Atlanta or Peachtree Corners.
Print specs
| Final trim size | 24″ × 36″ |
|---|---|
| Bleed | 0.25″ on every side → file size with bleed 24.5″ × 36.5″ |
| Pixels at 300 DPI (with bleed) | 7,350 × 10,950 px |
| Large-format note | Anything over 24″ prints beautifully at 150 DPI (3,675 × 5,475 px). Aim for that as your minimum; 300 DPI is ideal but not required. |
| Safe zone | Keep text & logos 0.5″ inside the trim edge |
| Aspect ratio | 2:3 |
| Color mode | CMYK (convert before sending — RGB neon colors will print duller) |
| Accepted files | PDF (preferred), PNG, JPG or TIFF — flattened, fonts outlined or embedded |
Copy & paste AI prompt
Replace everything in [brackets] with your own details. Leave the size and print rules exactly as written.
Design a print-ready poster, final trim size 24" × 36", portrait orientation, aspect ratio 2:3. Output at 300 DPI in CMYK color mode. Final artwork with bleed should be 24.5" × 36.5" (7,350 × 10,950 pixels). Add 0.25" of bleed on all four sides and keep all text and logos at least 0.5" inside the trim edge. BUSINESS: [Business name] — [what you do] — [Atlanta, GA / neighborhood] PURPOSE: [event / promotion / announcement] HEADLINE: "[Your main message]" DETAILS: [date, time, location, price, offer — 3–5 short lines] CALL TO ACTION: "[Call now / Scan to order / RSVP at…]" CONTACT: [phone], [website], [social handle] STYLE: [bold & modern / clean & elegant / urban & edgy / playful]. Brand colors: [color 1], [color 2], [accent]. Fonts: [bold sans-serif headline, clean body text]. IMAGERY: [describe the photo or illustration you want, or say "no photos, typographic design only"] RULES: Use large, legible fonts and strong contrast; no tiny text; no lorem ipsum or placeholder text; no watermarks; spell every word exactly as written above; flat print-safe colors (no neon or glowing RGB effects); clean edges; solid background that extends fully into the bleed area.
Design tips for this size
- Posters get viewed from 3–10 feet away, so keep the headline huge and the body copy short.
- For event posters, put the who / what / when / where in a clean block near the bottom third.
- Photo-style artwork is fine, but ask for “sharp, high-detail” so it holds up at full size.
Tool settings
- ChatGPT / DALL·E: Paste the prompt as-is. Image output is limited to about 1024–1536 px, so pick the portrait option and then upscale (see step 3).
- Midjourney: Add
--ar 2:3to the end of the prompt and use--q 2. Upscale the result you like. - Canva (Magic Design / Magic Media): Create a custom-size design at 24.5″ × 36.5″, paste the prompt into Magic Media, then download as PDF Print with CMYK and crop marks & bleed checked.
- Adobe Firefly / Express: Choose the portrait aspect ratio closest to 2:3, generate, then open in Express at 24.5″ × 36.5″ @ 300 ppi and export as print PDF.
From AI image to print-ready file
- Generate 3–4 versions and pick the one with the cleanest text. AI still misspells words — read every line.
- Fix the text if needed by dropping the image into Canva or Photoshop and retyping headlines over it.
- Upscale to at least 7,350 × 10,950 px using Canva’s upscaler, Topaz Gigapixel, Upscayl (free) or Photoshop’s Super Resolution.
- Set the document to 24.5″ × 36.5″ at 300 DPI, convert to CMYK, and export a flattened PDF.
- Upload & order on the poster page, or send it for a quote. Not sure about your file? Send it anyway — we look at every file before it prints.
Prefer a ready-made layout? Grab a free file from our templates, or browse all AI print prompts.