It is possible to implement a calibration process that corrects density unevenness even in the case where the utilization ratios of the plurality of nozzle arrays used in printing differ. Concretely, making use of a print head provided with a plurality of nozzle arrays ejecting ink of the same color, it is a printing apparatus that performs printing, based on print data, by ejecting ink from the nozzles provided in the nozzle arrays, and has a print density characteristic acquisition unit, which acquires the print density characteristics of each of the nozzle arrays, and a nozzle array contribution ratio establishing unit, which establishes the printing ratios of the nozzle arrays that print a predetermined printing area, and does color shift correction processing of the print data based on each of the print density characteristics of the nozzle arrays and the nozzle array contribution ratios.