What resolution (ppi) should I use for printing in Illustrator?
I've created these flash cards in illustrator where the artboards measure 9 centimeters by 9 centimeters (that's about 3,5 X 3,5 inches for our American friends). Now when I export by artboards in Illustrator (CS6) I get asked at what resolution I want to export them, options being:
- Screen (72 ppi)
- Medium (150 ppi)
- High (300 ppi)
I'm not too sure what option to choose. All I want is that when I print these puppies that they'll be 9cm X 9cm and that it'll look as crisp as possible. I have no experience in print and I would really appreciate some help with this. Thanks!
Unless there is a specific need to convert it to bitmap (raster image, as others have explained in comments) because, for instance, this is all your printer can handle, none of those. Always leave vector art as vector art. Export to PDF and print (or have it printed) from that (unless you need to print directly from your own Illu to your own printer; in that case no conversion of any kind is necessary).
Always use a ppi over 300 if you want it to look as crisp as possible (300 should work perfect). Use 72 ppi only for web etc.