On-Screen Takeoff supports the Digital Takeoff Table™  as well as GTCO Compatible digitizers. 

By design, On-Screen Takeoff® supports digitizer functionality for licensed users only. If you are using the free On-Screen Takeoff PlanViewer, you will be unable to use a digitizer.

For additional information about the On-Screen Takeoff PlanViewer or for information about requesting a free demo of On-Screen Takeoff Professional, please visit our Web site http://www.oncenter.com

Using the Digital Takeoff Table