If I upload a design at a large size and then when creating a product reduce the size, do you interpolate by creating pixels with partial transparency? Or do you interpolate via something like a nearest-neighbor algorithm?
I understand that partially transparent pixels aren’t a good idea on digital prints because they print on a white matte, producing glowing effects on dark shirts.
I’m curious about the reverse direction too. If I upload a design at 200 pixels per inch but increase the size to 250 per inch, do partially transparent pixels get introduced?
I ask because I uploaded designs at the suggested 200 pixels per inch, only to discover that I should be printing the designs larger. Had I originally uploaded them at 300 pixels per inch, I could have solved the problem simply be resizing the images on the products. As things stand, I have to regenerate all of the design images and upload them again to increase the size of the image and yet print at 200 pixels per inch.