Disclosed is a variable printing system, which makes it possible to efficiently implement a variable printing, based on streamed variable print data. The variable printing system includes: the variable print data generating apparatus that creates variable print data in which an identifier, indicating an instruction for deleting a specific reusable object that will not be used in following pages, is embedded into a potion for describing page information including information in regard to the specific reusable object, and streams the above-created variable print data; and the variable printing control apparatus that receives the streamed variable print data to rasterized the concerned object, and synthesizes the rasterized data with each other so as to create image data for every page, and at the same time, conducts such the controlling operation to delete specific rasterized data of the specific reusable object, designated by the identifier, from the cache memory.