Delete selected annotations:
You can delete annotations by:
1. Clicking on the Eraser button on the left Annotation Tools panel and then the annotation you want to delete.
2. Clicking the “X” next to the associated comment in the Comments Panel on the right.
Clear all annotations:
1. In the right Comments Panel, open the Annotation tab (if it isn’t already open).
2. On the top right of the window, click the Clear All button.
3. You can choose to clear all Drawings and/or Comments from the PDF, then click ‘Delete’.