An image printing apparatus is provided. Which apparatus comprises an image data inputting means for inputting image data; a command inputting device for inputting a printing command including designation of an image to be output; a printing means for printing the image to be output; a display device for displaying an image; and a processing device for producing a protection processed image for applying a privacy protection process to the image to be output, and which also has a controlling means for displaying either one of the protection processed image and the image to be output on the display device according to the designation by a user.