However, unlike Illustrator 9.0, it treats each object in the group individually. This means that performance slows down considerably if you apply transparency to groups with many objects. Illustrator provides a more compre-hensive selection that inludes these commands, plus nine others including ones for trapping objects and mixing colors. 9 CorelDRAW indicates which objects are set to overprint but doesn't let you preview overprinting on screen. The shape tool in CorelDRAW lets you perform irregular selections on a single object.
Illustrator allows irregular selections with any number of products.
In CorelDRAW, you can align objects to the center of the page only. Both CorelDRAW and Illustrator export PDF files. This transition in file formats is transparent because the Illustrator extension is still .ai, and Illustrator can open previous versions of its files back to version 1.0 and save back to version 3.0. Also, you can roundtrip Illustrator PDF files with complete editability. This document is for use in the United States only.