methods and apparatus are provided for receiving a print file having an actual page size , and a nominal imposition template specifying a nominal page size , and generating an imposition flat for printing . if the actual page size matches the nominal page size , the nominal imposition template is applied to the print file without change . if , however , the actual page size differs from the nominal page size , the nominal imposition template is automatically modified based on the actual page size , and then the modified imposition template is applied to the print file to create the imposition flat .