Best Practices for Upscaling Images for Print-on-Demand Products

Print-on-demand sellers run into resolution problems constantly, usually because artwork designed for web use — social media graphics, small digital illustrations — gets repurposed for large physical products without adjustment.

Typical print-on-demand resolution requirements

Most POD platforms specify a minimum resolution based on the physical product size, generally targeting somewhere between 150–300 DPI depending on the product and how closely it's typically viewed. A large wall art print or blanket generally needs less DPI than a small greeting card or phone case that's viewed up close. Always check your specific platform's stated requirements for the specific product type, since they vary.

Why this trips up so many sellers

Artwork is frequently created or exported at web resolution — enough for a sharp Instagram post or Etsy thumbnail, which typically needs far fewer pixels than a large printed product. A design that looks perfectly crisp as a 1080px square social graphic can be well under the pixel count needed for even a modest-sized printed poster or shirt.

Upscaling artwork for print

If your source artwork falls short of your platform's requirement, upscaling it up to the needed dimensions is a common and reasonable fix — but the result depends heavily on what kind of artwork you're starting with. Flat-color illustrations and line art (see our guide on upscaling line art) generally upscale cleanly. Busy, highly detailed digital paintings or photo-based designs ask more of the upscaling process and are worth checking closely at full size before committing to a print run.

A pre-production checklist

• Check the exact pixel dimensions your platform requires for your specific product and size.
• Upscale from your original design file, not a version that's already been exported small for social media.
• Export as PNG for artwork with flat colors, text, or transparency; JPG is fine for photo-based designs without transparency needs.
• Zoom in on the upscaled result at 100% before submitting — what looks fine in a small preview can reveal softness once you check it closely.

Ordering a sample first

Whenever you're upscaling artwork significantly beyond its original size, it's worth ordering a physical sample before committing to a full product listing or bulk order. Screen previews don't always reveal exactly how an upscaled design will look on the actual print medium.