The present invention provides an information processing apparatus and control method thereof and a storage medium that stores its control program capable of generating a code image with the optimum device in accordance with the amount and/or contents of the information to be encoded, and/or considering the load of the equipment. The information processing apparatus is electrically connected to an image processing apparatus, and includes: a deciding section for deciding on whether to generate a code image by encoding information or to issue a command for causing to generate the code image by encoding the information; and a processing section for generating, when the deciding section decides to generate, the code image by encoding the information and transmitting it to the image processing apparatus, and for transmitting, when the deciding section decides to issue, the command to the image processing apparatus.