Preferred File Types

For screen printing, all files must be at least 300 ppi or in Vector Format. You can’t just raise the resolution of a file that isn’t 300 ppi. This is referred to as “upsampling,” and it will result in a pixelated image. If you’re using Adobe Illustrator or similar Vector-based program to create your file, just resize your image to the size you want it to print at. 

Not correctly prepping your file with result in blurry or pixelated prints.