1. An image processing apparatus having a print function, comprising: a determination unit that determines whether or not to reflect a merging setting of a copy-forgery-inhibited image in image data output by a Send function which transmits the image data to an external apparatus based on settings operated by a user via a user interface, wherein the merging setting of the copy-forgery-inhibited image is a setting when the copy-forgery-inhibited image comprised of a latent image and a background image is merged and printed on the image data, the latent image being left when a printed material is copied and the background image disappearing when the printed material is copied; a merging unit that merges the image data and the latent image without merging the background image in a case where the image data is output by the Send function and it is determined by the determination unit that it reflects the merging setting in the output image data; and a display unit that displays a screen for setting exception items that do not reflect the merging setting in the output image data even if it is determined by the determination unit that it reflects the merging setting in the output image data, the screen being used for setting an output destination of the image data as the exception items, wherein, when the exception items are not set in the Send function, a merging result of the image data and the latent image merged by the merging unit is output, and when the output destination is set as the exception items in the Send function, the image data to which merging processing is not performed by the merging unit is output to the output destination, and wherein, in the print function, a merging result of the image data, latent image and the background image merged by the merging unit is output.