PDF compatibility is a common issue in Illustrator, and there are a few ways to enable it. The first way is to use the PDF command. To do this, select File > New > PDF from the menu, and then enter the following information: Name: MyPDF Path: C:\Users\username\AppData\Roaming\Adobe\Illustrator\User Data\pdfs The second way is to use the PDF Editor. To do this, open Illustrator and click on the Edit button in the top left corner of the main window. Then click on Preferences in the Preferences window, and then click on PDF Editor in the preferences list. In the PDF Editor, you will see a list of commands that are related to PDF compatibility. The first command is “PDF Compatible.” This command will enable you to create files that are compatible with Adobe’s PDF format. The second command is “PDF Output.” This command will allow you to print files that are compatible with Adobe’s PDF format.