Poster mockup generator — upload art, get listing-ready mockups
Upload once. Ratio Ready crops to 2:3 portrait (7200×10800) or 3:2 landscape (10800×7200), AI-upscales your source to a 10,800px master, exports a 300 DPI print file, and drops smart-object mockups plus a listing video into your download — all in one go.
§Key Features
Poster-specific aspect ratio cropping
Choose 2:3 portrait or 3:2 landscape and Ratio Ready handles the crop precisely. No guessing at canvas sizes or doing the maths yourself — the output matches standard poster dimensions every time.
AI upscale to 10,800px before crop
Your source gets upscaled ×10 to a 10,800px master before any cropping happens. That means even a small JPEG gives you a sharp, full-resolution print file with no visible pixelation at 300 DPI.
Smart-object mockups bundled
Finished mockups come with your art already placed — no Photoshop, no manual layer work. Room scenes, close-up frames, and lifestyle shots are all generated automatically from your upload.
Listing video included
Every poster run produces a short listing video alongside the mockup images. Upload it directly to your Etsy listing for higher click-through — no extra editing software needed.
§How it works
§01
Upload your artwork
Drop in any JPG or PNG — phone photo, Illustrator export, Procreate canvas. Resolution doesn't need to be perfect; the AI upscaler handles that in the next step.
§02
Select orientation and crop
Pick 2:3 portrait or 3:2 landscape. Ratio Ready positions the crop intelligently and shows you a preview before it commits. Adjust if you want, or accept and move on.
§03
AI upscale + 300 DPI print file
The upscaler stretches your source to a 10,800px master, then crops to exact poster dimensions. The output is a 300 DPI JPG — ready to upload to Printify, Printful, or any POD supplier.
§04
Download mockups and listing video
Your ZIP contains the print file, all mockup images at 2048×2048, and an MP4 listing video. Upload the lot to Etsy and your listing is done.
§Specifications
When you’d use this tool
Four scenarios where this tool saves the most time:
- New poster listing with a low-res source. You have a great design but only a 1000px export from your phone or a client brief. Upload it, let the AI upscaler do its work, and you'll have a 300 DPI print file and full mockup set ready to list today — no Photoshop licence required.
- Refreshing an existing catalog. Your older listings are using flat preview images or outdated mockup styles. Run each one through the poster mockup generator, swap in the new room-scene mockups and listing video, and your catalog looks current without redesigning a single piece.
- Automated poster workflow via API. If you're generating designs programmatically — AI art, batch illustration sets, seasonal drops — the Ratio Ready API lets you pipe each design through the poster flow and receive print files plus mockups without touching the UI.
§Common mistakes
Things to watch for, in approximate order of how often I see them:
Using the wrong aspect ratio for posters
A lot of sellers crop to 3:4 because it feels close enough to portrait. It isn't. Standard poster sizes (18×24, 24×36, A1, A2) are all 2:3. A 3:4 crop means either white borders at the printer or your art gets clipped. Pick 2:3 and the print file matches what every major POD supplier expects.
Cropping before upscaling
If you resize and crop your source yourself, then upload a small file, the upscaler is working from less information. Ratio Ready always upscales the full original first and crops after — that sequence matters for sharpness at the edges of the frame. Upload your raw source, not a pre-cropped version.
Mixing wildly different mockup styles in one listing
One dark moody room scene, one bright flat-lay, one outdoor lifestyle shot — it reads like three different shops. Pick a consistent aesthetic across your mockup set. Ratio Ready's bundled templates are styled to complement each other, so sticking with one set gives you a coherent listing without extra curation work.
Frequently asked questions
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Start free — 75 Creative Credits included
No credit card required. Upload your first poster and have a listing ready today.