A method of controlling an image processing apparatus. the method includes accepting a predetermined instruction regarding a predetermined image that is being displayed on the image processing apparatus, changing, in a case when the predetermined instruction is accepted, so that a predetermined mark added to the predetermined image does not overlap with a non-printing area corresponding to an area where printing is not to be performed, a location of the predetermined image based on the predetermined mark, and executing a process of printing the predetermined image and the predetermined mark in the printing area corresponding to an area where printing is to be performed on a recording medium.