Sometimes you might need to digitize information from a paper source document that is larger than your digitizing tablet. With Didger, you can accomplish this task by making use of the Tablet Calibration in the Draw menu and the Project Limits in the Map menu.
When you are using a large document you need to define different sections of the document, each of which should overlap somewhat and be small enough to fit on the digitizing tablet. You have to select between three and 256 calibration points within each section. Each section of the document is to be digitized within a single project by digitizing one section at a time. After you complete a section, you can move the document on the tablet so a new section is oriented and recalibrate the tablet. You can reset the project limits so all sections can be seen in the plot window.
Selecting Calibration Points
Tablet Calibration Wizard
Digitizing a Large Document