A printing apparatus that prints images on a roll paper based on a job prints one or a plurality of image sets, each formed of a partition page image and a content image, on the roll paper based on a job in which partition information for inserting a partition page is set. In a case where the printing apparatus executes printing based on the job in which the partition information is set, control is performed to determine, based on a remaining amount of the roll paper loaded on the printing apparatus, a number of image sets that can be printed on the roll paper without interruption from among the image sets based on the job to print the determined number of image sets on the roll paper loaded on the printing apparatus.