A non-transitory computer-readable storage medium storing a program configured to cause a computer to operate to:
- acquire input monochrome image data representing a print target image and being comprised of one color component;
- convert, in a case where print setting for the print target image is set for performing a process for multiplexing additional information on the print target image, the input monochrome image data to three-color-components monochrome image data representing monochrome image and being comprised of three color components;
- and
- perform processing for multiplexing additional information on the print target image to the three-color-components monochrome image data.