Annotations on the page can be deleted using any of the below options
Delete a Specific Annotation:
- Using the Hand Tool or Object Selection Tool Select the annotation that you wish to delete.
- Delete the annotation by pressing the Del key, click on the Delete button on the Mini Toolbar, or right-click on the annotation (CTRL + Click on Mac), choose "Delete" in the context menu.
Delete All Annotations on Any Given Page:
From the menu, choose Comments > Delete Comments on Current Page.
Delete All Annotations:
From the menu, choose Comments > Delete All Comments.