The present invention relates to an image output control apparatus connected to plural image output devices through communication media, capable of controlling to output images of predetermined input data using the plural image output devices, a control method of the image output control apparatus and a storage medium thereof. According to the present invention, in accordance with an operation input performed by an operator on the basis of information regarding the plural image output devices displayed on a display unit, the plural image output devices for outputting images are selected, output media information stored in each image output device of the selected plural image output devices is obtained, and it is judged whether or not the selected plural image output devices have the same-sized output media on the basis of the obtained output media information. According to the judged result, display on the display unit is controlled, thereby realizing to improve operability in a setting operation when dispersive output processing is executed.
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