Interface > Working with Digitized Input > Scale Mode
  
Scale Mode
In Scale mode, you can specify the height and width of the area being digitized, and the units of the digitized data. This input enables you to scale data, or convert it automatically to different units. For example, if the drawing on the tablet is a C-size drawing, and you want to scale it to an A-size, for height type [8.5], and for width type [11]. The digitized data is scaled down from the C-size dimensions to fit the A-size sheet. Similarly, you can scale up digitized data.