An image data processing system, includes a plurality of first units that interpret data of assigned logical pages included in document data described in a page description language, generate intermediate data of the logical pages, divide the generated intermediate data of the logical pages into intermediate data on the basis of logical sections which are sections on the logical pages, and output the divided intermediate data; and a plurality of second units that correspond to physical sections which are sections on a physical page, generate print image data from intermediate data of a plurality of logical sections included in corresponding physical sections from among the intermediate data of the logical sections on the logical pages generated by the plurality of first units, and output the generated print image data to a printer.