An image processing apparatus is provided which determines a printing position of an identification code in accordance with a print setting designated for printing target data. For example, it makes a decision as to which one of the cutting printing, poster printing, job-based printing (such as bookbinding printing or staple printing), 2-sided printing, and other printing (such as normal layout printing and reduction layout (Nup) printing) is designated, and decides the printing position of a two-dimensional code. In page layout printing, the two-dimensional code is output in a mode suitable for source document data after page layout.