How do I change the eraser size and erase the markings?
A:
Do the following:
Select the Eraser icon.
Tap the Tools icon.
Note: Depending on the iOS device you are using, the Tools icon will be or .
Select the thickness (Thin, Normal, or Thin) and tap Done.
Drag your finger over the markings to erase them.
Note: There is not a way to undo your last markings. You can either erase specific lines or tap the pen in the upper right corner to exit pen mode and clear all markings.