When you apply a Distort transformation to a selected object, dragging a corner handle or an edge handle on the bounding box moves the corner or edge and realigns the adjoining edges. Shift-drag a corner point to constrain the distortion to a taper—that is, move that corner and the adjoining corner an equal distance and in the opposite direction from each other. The adjoining corner is the corner on the same axis as the direction you drag. Control-click (Windows) or Command-click (Macintosh) to drag a middle point on an edge to move the entire edge freely.
You can distort graphic objects by using the Distort command. You can also distort objects when performing a free transform on them.