1. Tap the Bookmark icon from the bottom-right corner of the main screen. If you don't see the Bookmark icon, tap the center of your screen to bring it up.

2. Tap the Annotations tab:

3. Long press on any annotation in the list will bring up three options:

- Delete this annotation: deletes the selected annotation
- Delete all annotations on page: deletes all annotations on the page where selected annotation is on
- Delete all annotations in the document: deletes all annotations in the entire document

Note: you can always revert the changes by using Undo/Redo.