ADDITIONAL INFORMATION PROCESSING DEVICE, ADDITIONAL INFORMATION PROCESSING SYSTEM, AND ADDITIONAL INFORMATION PROCESSING METHOD

摘要

Disclosed is an additional information processing apparatus (10) capable of easily limiting the allowable number of times a content file such as a confidential document can be copied, or capable of easily enabling to check a record of copy events to trace back the copy events. The additional information processing apparatus (10) includes an image acquisition component (2) which acquires input image data in which additional information is embedded; and an extracting component (20) which extracts the additional information from the input image data; and an additional information modification component (24) which generates new additional information by modifying the additional information when determining that the additional information complies with a predetermined condition, and generates copied image data by embedding the new additional information into the input image data or image data obtained by removing the additional information from the input image data.