Open a picture in Enhancer.
Make editing changes as required. To undo the last edit, click the
Undo button 
.
The undo feature give you an oppportunity to reverse the last edit. It is important to understand that once you save the picture, undo cannot an edit that happened prior to the save.
Open a picture in Enhancer.
Make editing changes as required. To undo the last edit, click the
Undo button .