From the Popular or Annotate category, click the Eraser
tool in the toolbar.Drag your cursor across the annotations you want to erase.
Alternatively, you can also:
Click on the annotation using the Select tool.
Then, select the Trash icon.
TIP: If you erase the wrong area and want to undo/redo the erase action, tap the undo and redo tools in the toolbar.
Or, use the shortcut: Undo
Mac: Command 'Z'
Windows: Crtl 'Z'
Check out this article here: How do I undo/redo?



