Patent ID: 8509425

Claim:
An image processing system comprising: one or more central processing unit (CPU) coupled to a memory; said one or more CPU configured to execute: a rendering information input accepting function to accept an input of rendering information for depicting a content of electronic data; a digital image generating function to generate a digital image configured to have an aggregation of pixels based on the rendering information of which the input is accepted by said rendering information input accepting function; a definition information acquiring function to acquire definition information containing area designating information for specifying an encrypting target partial area in the digital image generated by said digital image generating function and key information used on the occasion of encrypting the target partial area; an encrypting function to generate an encrypted image into which an image of the target partial area is encrypted by converting the image of the target partial area specified based on the area designating information based on the key information; an output function to output the encrypted image corresponding to the content of the electronic data, which is generated by said encrypting function; a definition information retaining function to retain a plurality of predefined pieces of definition information associated with pieces of identifying information for identifying the definition information; and an identifying information acquiring function to acquire the identifying information by image recognizing from the digital image generated by said digital image generating function, wherein said definition information acquiring function acquires the definition information containing the area designating information and the key information used for generating the encrypted image by said encrypting function from the plurality of predefined pieces of definition information retained by said definition information retaining function based on the identifying information acquired by said identifying information acquiring function.