1. An information processing apparatus, comprising: a display unit; a coordinate input unit operable to input coordinates on the display unit; and a processor operable to perform processing based on the input in the coordinate input unit, wherein the processor causes the display unit to display a system screen, sets an enlargement target region in the system screen, the enlargement target region based on the coordinates inputted in the coordinate input unit, superimposes and displays an enlarged image obtained by enlarging the enlargement target region by a predetermined magnification on the system screen, in a state where the enlarged image is displayed, monitors whether an input in the coordinate input unit is performed through a drag operation of which having starting coordinates in the enlarged image, when the input in the coordinate input unit is performed through a drag operation having starting coordinates within the enlarged image, monitors coordinates while the drag operation is performed, and when the coordinates while the drag operation is performed come to be present within a predetermined range that is a region outside of the enlarged image defined by the edge of the enlarged image, erases the enlarged image, unless the coordinates while the drag operation are performed are present in the enlargement target region of the enlarged image, in which case the image is not erased.