Re: What's The Best File for Screenprinting--From Illustrator to Freehand or Corel The first format i would try is PDF. Recent versions of corel and freehand should be able to import it. If the folks are running antique versions of corel or freehand, you would need to save at an equivalently older version of illustrator.
Be sure you convert all the text to outlines, so you don't need to worry about the fonts.
fred |