A printing apparatus includes a determination unit configured to determine whether a document read by a reading unit is blank. The printing apparatus controls a printing unit to perform print processing based on image data corresponding to a document that has been determined not to be blank by the determination unit, and controls the printing unit not to perform print processing based on image data corresponding to document that has been determined to be blank by the determination unit. The printing apparatus discharges a sheet, on which print processing has been performed based on image data corresponding to a document, subsequent to the document that has been determined to be blank by the determination unit, which has been determined not to be blank by the determination unit, to be distinguishable from a sheet that has already been discharged.