An image processing apparatus which generates copy-forgery-inhibited pattern print image data by compositing print image data and copy-forgery-inhibited pattern image data, the apparatus comprising: an applied amount calculation means (203; 403) which calculates an amount of applied toner of the print image data and an amount of applied toner of the copy-forgery-inhibited pattern image data, characterized by: a determination means (204; 406) which determines, based on the amounts of applied toner calculated by said applied amount calculation means (203; 403), whether the sum of the amounts of applied toner of the print image data and the copy-forgery-inhibited image exceeds a predetermined amount of applied toner; an applied amount control means (205; 407) which, in a case where said determination means (204; 406) determines that the sum of the amounts of applied toner exceeds the predetermined amount of applied toner, restricts the amount of applied toner of the print image data to prevent the sum of the amounts of applied toner from exceeding the predetermined amount of applied toner, wherein in a case where the sum of the amounts of applied toner does not exceed the predetermined amount of applied toner, the amount of applied toner of the print image data is not restricted by said applied amount control means (205; 407); and a composition means (207; 409) which composites the print image data whose amount of applied toner is restricted by said applied amount control means (205; 407) in a case where the sum of the amounts of applied toner exceeds the predetermined amount of applied toner, and the copy-forgery-inhibited pattern image data, and composites the print image data whose amount of applied toner is not restricted in a case where the sum of the amounts of applied toner does not exceed the predetermined amount of applied toner, and the copy-forgery-inhibited pattern image data, to generate the copy-forgery-inhibited pattern print image data. an applied amount calculation means (203; 403) which calculates an amount of applied toner of the print image data and an amount of applied toner of the copy-forgery-inhibited pattern image data, characterized by: a determination means (204; 406) which determines, based on the amounts of applied toner calculated by said applied amount calculation means (203; 403), whether the sum of the amounts of applied toner of the print image data and the copy-forgery-inhibited image exceeds a predetermined amount of applied toner; an applied amount control means (205; 407) which, in a case where said determination means (204; 406) determines that the sum of the amounts of applied toner exceeds the predetermined amount of applied toner, restricts the amount of applied toner of the print image data to prevent the sum of the amounts of applied toner from exceeding the predetermined amount of applied toner, wherein in a case where the sum of the amounts of applied toner does not exceed the predetermined amount of applied toner, the amount of applied toner of the print image data is not restricted by said applied amount control means (205; 407); and a composition means (207; 409) which composites the print image data whose amount of applied toner is restricted by said applied amount control means (205; 407) in a case where the sum of the amounts of applied toner exceeds the predetermined amount of applied toner, and the copy-forgery-inhibited pattern image data, and composites the print image data whose amount of applied toner is not restricted in a case where the sum of the amounts of applied toner does not exceed the predetermined amount of applied toner, and the copy-forgery-inhibited pattern image data, to generate the copy-forgery-inhibited pattern print image data. a determination means (204; 406) which determines, based on the amounts of applied toner calculated by said applied amount calculation means (203; 403), whether the sum of the amounts of applied toner of the print image data and the copy-forgery-inhibited image exceeds a predetermined amount of applied toner; an applied amount control means (205; 407) which, in a case where said determination means (204; 406) determines that the sum of the amounts of applied toner exceeds the predetermined amount of applied toner, restricts the amount of applied toner of the print image data to prevent the sum of the amounts of applied toner from exceeding the predetermined amount of applied toner, wherein in a case where the sum of the amounts of applied toner does not exceed the predetermined amount of applied toner, the amount of applied toner of the print image data is not restricted by said applied amount control means (205; 407); and a composition means (207; 409) which composites the print image data whose amount of applied toner is restricted by said applied amount control means (205; 407) in a case where the sum of the amounts of applied toner exceeds the predetermined amount of applied toner, and the copy-forgery-inhibited pattern image data, and composites the print image data whose amount of applied toner is not restricted in a case where the sum of the amounts of applied toner does not exceed the predetermined amount of applied toner, and the copy-forgery-inhibited pattern image data, to generate the copy-forgery-inhibited pattern print image data.