A controller of an editing device executes displaying, on a display unit, an input area image corresponding to an input area in which the characters are arranged by overlapping the input area image on a medium image showing the printing medium, changing a size of the input area image displayed in the displaying, using first method or second method, according to a first instruction for changing the size of the input area, the first method being changing the size of the input area by setting a portion of the medium image corresponding to the non-light-transmitting area as a maximum range, the second method being changing the size of the input area by setting the entire medium image as a maximum range, and switching between the first method and the second method as a first switching.