1. An image processing apparatus comprising: a print control unit configured to cause a printing apparatus to print an original sheet containing a code which indicates an image which has been selected by a user and is stored in a memory; an acquiring unit configured to acquire an image of the original sheet which is read by a reading apparatus; an analyzing unit configured to analyze the code included in the image of the original sheet acquired by the acquiring unit; and a combining unit configured to combine the selected image specified from the memory by the code analyzed by the analyzing unit and an image included in the image of the original sheet acquired by the acquiring unit.