PDF (adobe.com)

Expand a selected object's stroke

You can convert the stroke of a selected path into a closed path. The result creates the illusion of a path with no fill and a stroke that takes on the same attributes as the original object's fill.


Note: Expanding the stroke of a path that intersects itself can produce interesting results. If the original path contains a fill, the intersecting portions of the path will not contain a fill after the stroke is expanded.
  1. Select Modify > Alter Path > Expand Stroke.

  2. Set the width of the resulting closed path.

  3. Select a corner type.

  4. If you chose miter, set the miter limit (the point at which a miter corner automatically becomes a beveled corner). The miter limit is the ratio of miter corner length to stroke width.

  5. Select an end cap option, and then click OK.