A control device for controlling an image processing apparatus including a disposition unit on which a printing medium is disposed and which has a plurality of suction holes for sucking the printing medium includes a display controller that displays, on a display, a display screen which is a screen showing the positions of the plurality of suction holes in the disposition unit, a selection receiver that receives selection of suction holes from the plurality of suction holes whose positions are displayed on the display screen, and an execution controller that performs control such that a suction operation is executed through at least some of the selected suction holes.