Draw a freeform path
To draw a path that produces a pixel everywhere that your mouse cursor touches, you use the Pencil tool. The result is a Path object whose points (or vertices) you can modify.
For a quick reference of modifications that you can make to a path, see Pen and direct selection usage.
To draw a freeform path
In the Toolbox, click Pencil .
On the artboard, draw the freeform path just as you would using a real pencil.