Patent ID: 8500381

Claim:
An image processing apparatus comprising: a storage unit configured to store a first type of image data in which a plurality of pages of image data are laid out in page order for executing bookbinding on a plurality of sheets, and a second type of image data in which a plurality of pages of image data are laid out in page order for executing N-in-1 printing on a plurality of sheets; a division unit configured to divide the plurality of pages of image data included in the first type of image data or the second type of image data stored in the storage unit into individual pages of image data; an arranging unit configured to arrange the page order of the plurality of pages of image data that have been divided by the division unit; and a controller unit configured to start, in a case where the division unit divides the plurality of pages of image data included in the first type of image data, output of the plurality of pages of image data divided by the division unit after the arranging unit has completed the arrangement of the page order of the plurality of pages of image data divided by the division unit, and to start, in a case where the division unit divides the plurality of pages of image data included in the second type of image data, output of the pages of image data divided by the division unit before the arranging unit has completed the arrangement of the page order of the plurality of pages of image data divided by the division unit.