What you are building
This guide walks through one complete job: a square Instagram promo for a product launch. You will write the prompt, pick dimensions, refine the layout, and export a file your marketing lead can post today.
Step 1 — Write the brief as a prompt
Open Poster AI Creator and start with facts, not adjectives. Name the format, audience, headline, colors, and mood. Example: "1080x1080 launch poster, headline Launch Night, navy background, gold accent type, photo of espresso machine, minimal layout, no clipart." Short prompts produce generic output. Specific prompts save revision time.
Step 2 — Lock aspect ratio before you iterate
Pick the target size first. If you need Stories later, duplicate the project and switch to 1080×1920 instead of stretching a square file. Cropping after the fact wastes detail and breaks type alignment.
Step 3 — Generate three directions, not one
Run three variations with small prompt tweaks: swap background treatment, push type larger, or simplify the layout. Compare at phone width. The winner is usually obvious within two minutes.
Step 4 — Edit like a designer, not a gambler
- Headline: Should read in under one second. Bump size until it dominates.
- Contrast: If text sits on a photo, add a flat overlay band or move type to open space.
- Logo: Place it once, bottom corner, consistent padding on every export.
- CTA: One action only—Shop, RSVP, or DM. Drop the rest.
Step 5 — Export and sanity-check
Export PNG for social, PDF if print is possible. Open the file on your phone at 100% zoom. Blurry type or clipped logos mean go back one step—do not ship and fix later.
When to keep humans in the loop
Poster AI Creator handles volume and speed. Keep a designer (or yourself) for brand systems, custom illustration, and print specs with bleed. Use AI for the 80% that is repetitive; use craft for the 20% that defines the brand.
