How to use the line tool

- The line tool draws straight lines on an image.

How to use the pencil tool

- The pencil tool creates hard-edged freehand lines and is most useful for bitmapped images.

How to use the magic eraser tool

- When you click in a layer with the magic eraser tool, the tool automatically erases all similar pixels to transparency.

How to use the background eraser tool

- The background eraser tool lets you erase pixels on a layer to transparency as you drag.