You can control the layers, adjust the appearance, or specify clipping boundaries in a DWF underlay.
You can turn layers on and off in a DWF underlay.
Aside from using the Properties palette to edit the position, scale, and rotation of a DWF underlay, you can also modify the contrast, fade, monochrome, and colors for the background of a DWF underlay.
You can use a rectangular or polygonal clipping boundary to clip the display of a DWF underlay in a drawing.
You can control the visibility of the frame that represents the extents of the DWF underlay or the visibility of the frame that is defined by the clipping boundary.