A printing apparatus is provided that, in a case where copy numbers are printed on the single-sheet document and the sheets are then discharged, prevents the copy numbers from going out of order while preventing the time it takes to complete printing from being extended. A method for controlling such a printing apparatus includes performing control such that, in a case where processing of printing an image on a single sheet per copy is carried out for a plurality of copies, the sheet on which the image is printed is discharged in a face-up state or in a face-down state depending on printing of the copy number.