- Help Center
 - Using Lumin
 - Annotation Tools
 
How do I erase/delete my annotations?
Undo or erase parts of your documents' annotations with Lumin's eraser tool.
- 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?