A layout processing method changes the layout of a template having a plurality of data areas in accordance with contents data to be assigned in each of the plurality of data areas. The method includes a displaying step, first and second setting steps, and a layout step. In the layout step, the size of a first data area is maintained, changed, or expanded based on the size of contents data assigned in the first data area and based on changes in the size of a second data area associated with the first data area. An information processing apparatus and a control program stored on a computer-readable medium are also provided.