To provide a system for optimally adjusting the output format of character information when the character information is overlapped to image information for outputting.

In processing for delivering an image that is shot in modality from a verification delivery device to a destination device such as a printer and a display, the verification delivery device calculates the enlargement/ reduction rate of the image according to destination device information, output format information, and output image information as an output destination, selects the font size and type of output character information according to the enlargement/reduction rate of the calculated image, and outputs character information according to the selected font size and type. With this configuration, attached information such as patient information can be outputted in the font size and type adapted to the output format.