Ready-made flow · Loud 18×24 sale posters with the offer on a burst
AI Sale Poster Maker
Idyllic's sale poster maker turns your offer into 18×24 in posters that read from across the store: the offer huge on a starburst, the sale name above it, the dates in a pill and your store name at the bottom, all over a vivid picture that suits what is on sale. Every word stays editable in Canvas.
- Size
- 18×24 in, 1800×2400 px (3600×4800 Large)
- You get
- 3 posters + the pictures without type
- Image model
- Seedream 5
- Cost
- 27 credits for 3 posters, on Plus
- Looks
- Bold, Neon, Luxury, Retro, Minimal, Holiday
Real output · no retouching
One brief.
3 results.
- The offer
- 50% off all outerwear
- Sale name, dates and store (optional)
- Winter Clearance · Nov 28 - Dec 1 · Northside Supply Co.
- Look
- Bold
How to make it
Four steps, about a minute of your time. These are real screens from the run above.
- 01
Type the offer
Write 'The offer' as it should read, like '50% off all outerwear', then add 'Sale name, dates and store'. Pick a look (Bold, Neon, Luxury, Retro, Minimal or Holiday) and up to four variations.
Open the flow
- 02
Watch it get designed
The AI writer cuts the offer to 1-3 words for the burst, with your number exactly as given, and sets the sale name, dates and store. Seedream 5 makes a different vivid background for each poster with a calm center for the burst, then Idyllic sets the type. Preview the plan free first.
- 03
Compare the posters
All the posters appear side by side, next to their backgrounds on their own, so you can pick the picture that suits the sale.
- 04
Edit and download
Open one in Canvas to change the offer, the dates or the burst color, then export a PNG: Standard for screens and socials, or Large (3600×4800 px, 200 ppi at 18×24 in) for print.
Why it beats
a template
The offer is the hero
The offer sits huge on a starburst in your accent color with a 3D extrude, so '50% OFF' is the first thing anyone sees from the door.
Your numbers, exactly
The writer keeps the discount and the dates as you typed them. No rounding, no invented end dates, no extra conditions.
A background that fits the sale
Seedream 5 fills the edges with products or bold shapes that suit what is on sale, and keeps the center calm so the burst stands out.
Edit every layer
Canvas has 144 fonts and text effects like outline, shadow, neon and 3D. Recolor the burst, change the offer for next week, or select part of the picture and describe a change.
One design, window to feed
Print the Large export for the window or the wall, and post the Standard PNG on your site, socials and in-store screens.
What makes a sale poster work
- One offer per poster. '50% OFF' reads faster than a list of discounts.
- Make the number the biggest thing on it.
- Always show the dates. A sale with an end date gives people a reason to come now.
- Say what is on sale in a few words: 'all outerwear', 'everything in store'.
- Hang one copy by the entrance at eye level and another where people pay.
- Use the same design in the window and on social, so people recognize the sale.
Sale poster sizes for print
| Idyllic sale poster | 1800×2400 px, or 3600×4800 Large | 18×24 in proportions (3:4), PNG |
|---|---|---|
| 18×24 in poster | 457×610 mm | The Large export prints at 200 ppi; 300 ppi would be 5400×7200 px |
| 12×16 in poster | Same 3:4 shape | The Large export prints at 300 ppi |
| 9×12 in sign | Same 3:4 shape | The Large export prints at 400 ppi, for a counter or a shelf |
Print shops usually ask for 150-300 ppi at full size and a small bleed, often 1/8 in. Keep the offer and dates away from the edges and ask how your shop handles bleed.
Steal a brief
Each one opens the flow with the brief filled in. Change anything before you run it.
Buy one, get one free on all candles at Wick & Wax, this weekend only
Black Friday, 40% off everything at Copper Lane Boutique, Nov 27 only, neon look
$10 off any haircut at Fade Factory, every Tuesday in March
Summer Clearance, up to 70% off swimwear at Tidewater Surf, July 1-15
Holiday sale, 25% off all toys at Little Acorn Toys, Dec 1-24, holiday look
Moving sale, 60% off all furniture at Oak & Iron, everything must go, ends Sunday
Back to School, 30% off backpacks and supplies at Pencil Box, Aug 10-25
Spring plant sale, 3 for $20 on all succulents at Greenhouse Nine, retro look
Grand opening, 20% off your first visit at Glow Nail Studio, June 6-8
Questions
How do I start creating a sale poster?
Type the offer, add the sale name, dates and store, pick a look and run the flow. You get three finished posters in about a minute; open one in Canvas to change anything.
Is the sale poster maker free?
You can preview the whole flow free: real AI copy with sample images, so you can check the plan. Running it for real is on Plus ($10.50 a month, billed yearly) and uses 27 credits for three posters. The free plan also includes 3 free images a day in the image studio.
What size should a sale poster be?
18×24 in is a common size for store windows and walls, and it is the shape Idyllic designs in. The Large export is 3600×4800 px, 200 ppi at 18×24 in; the same file prints at 300 ppi at 12×16 in.
Can I choose the resolution of my sale posters?
Yes. Every poster exports at Standard (1800×2400 px) for screens, or Large (3600×4800 px) for print.
Will the discount be spelled correctly?
Yes. The offer is set as real type, not drawn into the picture, and the number stays exactly as you typed it. Proofread the dates before you print.
Can I use my own product photos?
The flow makes its own background from your offer and look. To feature your product, upload a photo in Canvas as a new layer, remove its background there and place it beside the burst.
Can I post the sale poster online too?
Yes. Download the Standard PNG for your site, socials, emails or in-store screens. Paid plans include a commercial license.
Make something else
Everything you can make
Your turn.
Preview the whole flow free. No credit card.