Choose Undo from the Edit menu to reverse the most recent command. If the most recent command cannot be reversed, Undo appears dimmed. When you use a command that can be reversed, its name appears Undo on the menu (for example, Undo Cut, Undo Clone, Undo Paste). After you undo a command, Undo changes to Redo. Choose Redo if you want to restore the changes.
