You can update your annotations on a presentation―title, annotation text, and timestamp―as needed. You can only edit annotations that you have added to the presentation.
To edit your annotation on a presentation:
1. Start
the presentation and click the Annotations button to view its annotations.
2.
Navigate to the annotation you want and click the More button .
3. In the Edit Annotation window, modify the title and annotation text as needed. You can also select a different timestamp for the annotation.
4. Click Save.
Edit annotation