hi there,

i just can't find infos about what an design, done with illustrator, must be like to be printable. the guidelines for photoshop pixeldesigns are clear: 300 dpi, each color on a seperate layer.

do i have to seperate colors in illustrator as well?
whats files does threadless accept? ai as well? or do they convert vectorfiles into pixels by themselves and create their layers for the colors? if yes, how are they doing that?

thx