To print a two-dimensional code in the number of pixels in accordance with the performance of a printing means in printing the two-dimensional code including each component formed of a plurality of elements with a printing means.

The number of pixels of each element suitable for the printing of the two-dimensional code is compared with the number of pixels of each element of the two-dimensional code as a printing object. When matching cannot be attained, a changing means is provided which can change the number of pixels of each element of the two-dimensional code as the printing object before the printing means prints the two-dimensional code as the printing object.