A print processing apparatus comprises the image processing unit including a plurality of image processing sections that correspond respectively to the plurality of kinds of image processes; a generation unit configured to generate a preview image based on a result of processing by the image processing unit; a display unit configured to display the preview image generated by the generation unit; a use-situation identification unit configured to identify a use situation of the image processing sections; and a selection unit configured to select a preview method from among a plurality of preview methods for generating the preview image, according to the use situation identified by the use-situation identification unit, the selected preview method using an image processing section that is available in the identified use situation of the image processing section.