Final answer:
To discard changes in image editing software, use the 'undo' function or select 'Revert' to return to the original state. In programs like Microsoft Word for text revisions, use the 'Reject' button in the tools ribbon and the 'Reviewing Pane' to manage edits.
Step-by-step explanation:
If you are editing an image and want to discard the changes you've made, the specific action to take depends on the software you're using. However, common steps include clicking on the undo button to reverse changes one at a time, or selecting 'Revert' to go back to the original image if the software has that option. If you're in a program like Adobe Photoshop, you can revert to the last saved state by choosing 'Revert' from the File menu. If you've made multiple changes and want to undo all of them quickly, most image editing software provides a history feature where you can click on the first state in the history panel to return to the original image.
When working in a word processor like Microsoft Word and dealing with text revisions, you would click on the Reject option in the tools ribbon if you want to cancel specific edits. Furthermore, if you want to make sure no changes have been mistakenly kept, you can use the Reviewing Pane to navigate, accept, or reject changes and edits.