AutoCAD 2008 User's
Guide > Share Data Between
Drawings and Applications > Work with Data in
Other Formats > Import, Attach, or
Open Other File Formats > Attach DWF Files as
Underlays >
Attach and Detach DWF Underlays
You can attach or detach a DWF underlay (a DWF file reference) to drawing files. You can also change the position, scale, and orientation of DWF underlays.
You can attach a DWF file as an underlay to a drawing file.
DWF underlays can be detached from a drawing file.
