Using the PowerPoint presentation review feature can help you prepare and get feedback from others on your slides before you present.
If there are any comments in your presentation, you should remove them before sharing the final version with anyone you are not collaborating with. Comments can reveal confidential information that could lead to embarrassment or make you or your company appear unprofessional.
It's a good idea to double-check your presentation using the Document Inspector. The Document Inspector can tell you if there are any comments or other hidden data in your presentation that you may need to remove.