Make your AI design print-readyNew
Drop an AI design and get a file at the exact print-on-demand size — a T-shirt, poster, mug or sticker for Printful, Printify or Gelato — with the DPI saved inside. Pick the product, choose how to handle a shape that doesn’t match, and the AI upscales it to fit.
Runs in your browser — your design is only uploaded if you choose the AI cut-out.
Green dashed line — safe line. Keep important things (text, faces, logos) inside it. Printing and cutting can shift a few millimetres, and frames cover the edge, so anything outside it might get cut off or hidden.
Red dashed line — trim line (only with bleed). The printer cuts the paper here. The red-tinted strip outside it is the bleed: extra picture that gets thrown away, so no white edge shows if the cut is slightly off.
Solid line — edge of the print. This is the canvas: the exact size of the file you download. Anything on the grey outside it is not in the file.
Checkerboard means transparent — nothing is printed there.
Fit keeps all of the design and adds padding (striped). Fill covers the canvas; the dimmed parts outside are cut off. Stretch pulls the design to the canvas shape (the dashed box is its real shape). Extend keeps all of it and repeats its outer edge into the striped bands.
Print check
Made from the same AI result, so it’s quick. Same fit setting and file type; each size uses its own orientation.
Why AI designs need it
AI image generators like Midjourney, DALL·E or Flow usually give you 1024 to 2048 px. A T-shirt front needs 4500 × 5400 px, and an 18 × 24 in poster at 300 DPI needs 5400 × 7200 px. Stretched in a normal editor, the design prints soft; changing the DPI number alone doesn’t add any pixels. And the shape rarely matches: a square AI image on a tall poster has to be padded, cropped or extended first.
This tool does all of it in one go: the exact size for your product and provider, the layout, an AI upscale that rebuilds detail, bleed and a transparent background if you need them, and a print check before you download.
How it works
- Drop your AI design — PNG, JPG or WEBP. 1024–2048 px is fine.
- Pick your print provider and product: a T-shirt, poster, mug, sticker or phone case, or type a custom size.
- Choose what happens if the shape doesn’t match — Fit, Fill, Stretch or Extend — and add bleed or a transparent background if you need it. The preview shows the edge of the print, the trim line and the safe line.
- Click “Make print-ready”. The AI upscales your design on your own device, then the file is built at the exact size.
- Read the print check, compare it with a normal resize at 100%, and download one file — or several sizes in one ZIP.
Only need a bigger image? Use the AI Image Upscaler. Want to check a file you already have? Try Is My Design Ready?
FAQ
What does “print-ready” mean here?
A file your print provider can use as it is: the exact pixel size for the product with the DPI saved in the file, your design placed the way you chose (fit, fill, stretch or extend), bleed for posters and stickers if you need it, and a transparent background if you want one. The print check then tells you how sharp it will print and what might get cut off.
Which products and sizes does it know?
T-shirt and hoodie fronts (4500 × 5400 px, and Printful’s 3600 × 4800 px DTG area), a left-chest logo, tote bags, posters from 8 × 10 to 24 × 36 in, A4 to A1, Gelato’s metric posters from 30 × 40 to 70 × 100 cm, 11 oz and 15 oz mug wraps, a 20 oz skinny tumbler, stickers and a typical phone case — or any custom size in pixels, inches or centimetres. Blanks differ between providers, so for mugs, tumblers and phone cases check your provider’s template.
Can the AI make a small image print sharp?
It rebuilds edges, text and flat colour much better than a normal resize, so a 1024 px AI design can make a good T-shirt or a small poster. It can’t invent detail that was never there: blown up to a 24 × 36 in poster, a small image will still look soft up close. The print check shows how many DPI your original gives at the chosen size, so you know before you order a sample.
Is my design uploaded?
No. The upscaling, the layout and the instant background removal all run in your browser, on your own device. Only the optional AI cut-out sends the image to our server, where it is cut out and deleted straight away.
Is it free?
Yes — no sign-up and no watermark. The AI cut-out for photos and busy backgrounds has a small daily allowance (more with a free account or a paid plan), and the page shows how many you have left. The instant cut-out for plain backgrounds is unlimited.
What is bleed, and do I need it?
Bleed is a little extra picture past the line where the printer cuts — here 0.125 in on every side — so no white edge shows if the cut is slightly off. Posters, prints and stickers often need it; T-shirts and mugs don’t. Tick “Add 0.125 in bleed” when your provider asks for it, and keep text inside the green safe line.
Fit, Fill, Stretch or Extend — which should I pick?
Fit keeps the whole design and fills the leftover space (transparent, white or the edge colour). Fill covers the whole print and crops what sticks out — drag the preview to choose the crop. Stretch fills the print exactly but changes the proportions, so use it only for small differences. Extend keeps the whole design and stretches its outer edge to the canvas edge, which works well for plain or soft backgrounds.
JPG or PNG?
PNG when the file has see-through parts, like a T-shirt design or a sticker. Otherwise JPG, which is many times smaller and prints the same. The download panel shows the file size of each and whether it fits the Etsy, Printify and Printful upload limits, and the DPI is saved in every file.
How is this different from the Image Upscaler?
The Image Upscaler makes an image bigger. This tool does the whole job for a print-on-demand product: the exact size for the product, the layout, bleed, a transparent background, a print check and several sizes in one ZIP. Both use the same AI model, on your own device.