11. One or more non-transitory computer-readable storage media comprising stored instructions that, when executed by a processor of a computing device, perform operations comprising to: receive a position input as motion data communicated from a stylus to a tablet device, the motion data indicating an initial position of the stylus above a surface of the tablet device; determine a perpendicular motion combined with a parallel motion as a change in position of the stylus with respect to the surface of the tablet device, the perpendicular motion correlating to a zoom function as the stylus moves one of closer to or away from the surface of the tablet device, and the parallel motion correlating to a pan function as the stylus moves parallel above the surface of the tablet device; and initiate a zoom and pan display of a digital image based on the determination of the combined perpendicular and parallel motions of the change in position of the stylus with respect to the surface of the tablet device.
12. The non-transitory computer-readable storage media as recited in claim 11 , wherein the computing device performs the operations further comprising to: determine the combined perpendicular and parallel motions of the change in position of the stylus as the stylus moves closer to the surface of the tablet device while the stylus moves parallel above the surface of the tablet device; and initiate the zoom and pan display to zoom in on a portion of the digital image while panning the digital image in a direction of the parallel motion.