You can erase portions of your artwork
using the Path Eraser tool, the Eraser tool, or the eraser on a
Wacom stylus pen. The Path Eraser tool
lets
you erase parts of a path by drawing along the path. This tool is
useful when you want to limit what you erase to a path segment,
such as one edge of a triangle. The Eraser tool
and
the eraser on a Wacom stylus pen let you erase any area of your artwork,
regardless of structure. You can use the Eraser tool on paths, compound paths,
paths inside Live Paint groups, and clipping paths.

For a video on using the Eraser tool, see www.adobe.com/go/vid0036.
Erase part of a path using the Path Eraser tool
.
Erase objects using the Eraser tool
Erase objects using a Wacom stylus pen eraserWhen you flip a stylus pen, the Eraser Tool automatically becomes active. When you flip the stylus pen back over, the last active tool becomes active again.
Turn over the stylus pen and drag across the area
you want to erase.
Press harder to increase the width of the erased path.
Eraser tool optionsYou can change the Eraser tool options by double-clicking the tool in the Tools panel.
The pop‑up list to the right of each option lets you control variations in the shape of the tool. Select one of the following options: