Illustrator

Undo and redo changes

The Undo and Redo commands let you undo or redo operations, allowing you to correct mistakes as you work. You can undo or redo an operation after you select the Save command (but not if you have closed and then reopened the file).

 Choose Edit > Undo or Edit > Redo.

You can undo an unlimited number of operations (depending on memory) by repeatedly choosing the Undo command. If an operation cannot be undone, the Undo command is dimmed.