Patent ID: 8824019

Claim:
An image processing apparatus comprising: a generation unit configured to generate, from job data, image data, wherein the generated image data is independent of a model of the image processing apparatus in that the model-independent image data has yet to be subject to processing that is dependent on the model of the image processing apparatus; a calculation unit configured to perform a first calculation of content charging information about contents included in the image data and a second calculation of additional charging information about additional information added to the image data based on a method for adding the additional information to the image data; and a storing unit configured to store, for each charging destination stored in a storage unit, the content charging information about the contents calculated by calculation unit in the first calculation and the additional charging information about the additional information calculated by the calculation unit in the second calculation wherein the calculation unit switches between performing the second calculation based on an area of a background of the image data from a calculated area ratio or based on a whole page area of the image data depending on whether the additional information is added to a background of the image data or the additional information is overwritten on the image data in the method for adding the additional information to the image data, wherein the additional information is a copy-forgery-inhibited pattern.