1. A printing control system for printing print data generated by an information processing apparatus, comprising: input means for configuring bookbinding by designating a page layout on a recording medium; storage means for storing the print data so that the print data can be read out in a desired sequence in units of individual pages; allocation means for deciding, based upon bookbinding settings, whether control of bookbinding is to be performed by a first information processing unit or a second information processing unit; layout means for controlling page layout of the print data in accordance with the bookbinding settings and decision made by said allocation means; and output means for reading print data out of said storage means in a sequence that is in accordance with the controlled page layout, and subjecting the print data to print processing.