Every object you create can have an outline that you are able to manipulate in a variety of ways. You can think of each object as being drawn with a nib of adjustable size, shape, and color. These nib attributes can apply to a particular object or to all of the objects you add to your drawing.
In addition to the size, shape, and color of the nib, you can also change the ending shape of an outline. Lines or objects with open paths can have ends that are rounded, square, cropped, or tipped with arrowheads and other line-ending shapes. Objects with closed paths (squares, polygons, etc.) naturally have no end-points, but you can still choose from pointed, rounded, or truncated corners.
How to
To apply an outline color using the Outline dialog box
To adjust the width using the Outline Pen dialog box
To set an object’s line cap shape
To remove an object’s outline using the Outline tool flyout
To create a dashed outline using the Outline Pen dialog box
Filling and outlining objects