To get started, here are some general rules of thumb to keep in mind when thinking about print files:
Max. printing area: 12×16 inches and we scale print files down depending on the t-shirt model and size.
DPI: Files have to be a minimum of 150 dpi (digital pixels per inch) to ensure optimal quality. Any lower and the print will be blurry and pixelated.
Do submit these file formats: .png, .psd
Don’t submit these file formats: .ai, .pdf, .eps
Top reasons your order is on hold
1. Overall image quality
One of the most common issues are low-quality images, or images that are too small to be qualitatively scaled up. So the best thing you can do right off the bat is submit a large, high-quality print file. This section walks you through what that looks like!
When it comes to size, make sure the image you’re submitting is actual size, and that it reflects how big you actually want it on your garment. All submitted images should be no less than 150 dpi. If your image has fine details, we suggest submitting the image at 300 dpi. And it’s always best to submit a larger print file that we can scale down instead of vice versa.
If we do print out a low-resolution file that’s scaled up, then it will be blurred, stretched, and the edges will be pixelated. Generally not what high-quality online stores should be aiming for.
Another common problem is when print files include semi-transparent pixels/values/elements.
These are not recommended in DTG printing because the white underbase will be showing through those semi-transparencies, creating a very speckled look, which can often look poor quality. We suggest using 100% opaque (solid) colors only.
Always remove backgrounds!
Even if you’re printing on a white garment and you think it’ll be fine if you leave the white background – don’t. It may cause quality issues.
If you’re printing a black background on black, then you’ll be left with a greyish rectangle around your design. That’s because these prints on dark garments require a white underbase, and as a result, the printed black will be a lighter shade than the actual garment.