I added text to a photo & saved it. Realized there was a typo & want to change it. I tried clicking on the text but it wouldn't allow me to edit the text. Is there a way to do this?
No, you can't re-edit the text once you have saved the application. However, look in the application for Undo/Redo buttons available through the Edit function in menubar. Sometimes this function allows you to go back one step, although I highly doubt it. The complete removal of the changes are allowed only in dedicated applications that were developed to work in such way. From this category I can mention Adobe Photoshop and Gimp. These two apps are very powerful when it comes to creation and image manipulation.