Here is a high definition USB document camera you can use with your PC, Mac, and Chromebook to scan books, present, and do a whole lot more. The V4K lets you stream at up to 30fps at full HD. It also features fast focusing speed. You can use it to capture documents at different heights and angles.
The IPEVO V4K can be used with Camtasia and plenty of other popular apps. It has a max shooting area 13.46” x 10.04″.