Printful and Printify Image Size Requirements, Explained

Printful and Printify Image Requirements, Explained

By the Resly AI team · Updated 5 October 2026

The short answer

Both accept JPG and PNG up to 100 MB (and SVG up to 20 MB), and both recommend 300 DPI at the size the design prints. Large products like blankets, leggings and tapestries can go down to 120–150 DPI. What matters is pixels across the print area: multiply its width and height in inches by the DPI, and that's the image size you need.

The requirements side by side

Printful and Printify print file requirements
Requirement	Printful	Printify
File types	Printful: JPG, PNG, SVG	Printify: JPG, PNG, SVG
Recommended resolution	Printful: 300 DPI	Printify: 300 DPI
Large products	Printful: At least 150 DPI for most apparel and large-format; 120–150 for very large items	Printify: 120–150 DPI for large items like blankets and leggings
Maximum file size	Printful: 100 MB JPG or PNG, 20 MB SVG	Printify: 100 MB JPG or PNG, 20 MB SVG
Low-resolution files	Printful: Check the product guidelines before ordering	Printify: Says it automatically enhances low-res designs before production

From each platform's help centre, checked October 2026. Every product also has its own file guidelines with the exact print area.

Working out the pixels for a product

DPI on its own means nothing; pixels across the print area are what count. Find the product's print area in its file guidelines, then multiply:

Example print areas and the pixels each needs
Example print area	At 300 DPI	At 150 DPI
T-shirt front, 12×16 in	At 300 DPI: 3,600 × 4,800 px	At 150 DPI: 1,800 × 2,400 px
Poster, 18×24 in	At 300 DPI: 5,400 × 7,200 px	At 150 DPI: 2,700 × 3,600 px
Canvas, 16×20 in	At 300 DPI: 4,800 × 6,000 px	At 150 DPI: 2,400 × 3,000 px
Throw blanket, 50×60 in	At 300 DPI: 15,000 × 18,000 px	At 150 DPI: 7,500 × 9,000 px

Print areas vary by product and supplier; these are examples to show the arithmetic.

Setting a file to 300 DPI in its properties without adding pixels changes nothing: the platforms work out DPI from the pixels and the print area, not from the label.

When your design is too small

Re-export from the source. If you made it in Illustrator, Affinity or Canva, export again at the full print-area size; vector designs have no resolution limit.
Upscale raster art to the print area's pixels before uploading, rather than relying on the platform. That way you see the result before a customer does.
Fit the shape too. If the art is a different shape from the print area, it ends up cropped or with gaps. Extending the background fits it without cropping.
For huge items like blankets, don't chase 300 DPI. 150 is the platforms' own guidance, and nobody inspects a blanket from six inches.

Upscale a design to the print area

Upload it and type the print area's size in pixels or inches. You see the price before you pay. Resly delivers up to 16 megapixels, which covers posters and most apparel; a blanket at full resolution needs a bigger tool.

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Questions

What DPI does Printful require?

Printful recommends 300 DPI, and accepts at least 150 for most apparel and large-format products, down to 120–150 for very large items. The file needs enough pixels for the print area at that DPI.

What is the Printify image size limit?

100 MB for JPG and PNG files, and 20 MB for SVG.

Does Printify fix low-resolution images?

Printify's help centre says it automatically enhances low-resolution designs before production. It's safer to upscale the design yourself first, so you can check the result before a customer receives it.

How many pixels do I need for a print-on-demand poster?

Multiply the poster size by the DPI. An 18×24 needs 5,400 × 7,200 pixels at 300 DPI, or 2,700 × 3,600 at 150, which looks fine on a wall.