In order to control printing of at least one of a plurality of digital images, zero or no value is set as a default value for a number of print copy of every one of the digital images. If any, an instruction for setting the number of print copy of at least one of the digital images is received. An instruction for printing the at least one of the digital images is received, under a condition that an identifier associated with one of the digital images is designated in a display. It is judged whether the at least one of the digital images includes at least one digital image to which one or more is set as the number of print copy, upon receipt of the instruction for printing. The at least one of the digital images is printed in accordance with the set number of print copy when it is judged the at least one of the digital images includes at least one digital image to which one or more is set as the number of print copy. One copy of the one of the digital images associated with the designated identifier is printed when it is judged the at least one of the digital images does not include at least one digital image to which one or more is set as the number of print copy.