An AI file or Adobe Illustrator Artwork file is a vector graphics file format developed by Adobe Systems. It is primarily used in the Adobe Illustrator program for the creation of various graphics.

An .EPS is a special digital image format that stands for "encapsulated postscript." Only specific graphics software, such as Photoshop, Photoshop Elements or Illustrator, can open and edit this file.

When you open up either an EPS or a PDF made by Quark you will have to do a LOT of digging and careful ungrouping and unmasking in order to edit anything.<P>If you are just going to view them on the ...