Patent ID: 9411544
Filing Date: 2016-08-09
CPC Classification: G06F,G06K,H04N

Claim Text:
1. A printing apparatus for conveying a print medium and performing printing on the conveyed print medium, the printing apparatus comprising: a print data acquisition unit configured to acquire print data in which digital watermark information is added to image data, the digital watermark information being used to identify a position of an image of the image data on a print medium and being added to the image data for each of a plurality of blocks arranged according to coordinates of the position; a printing unit configured to print the image on the print medium in accordance with the print data acquired by the print data acquisition unit; a conveyance information acquisition unit configured to acquire information relating to conveyance of the print medium, based on information on the position of the image printed by the printing unit that is obtained by detection of the digital watermark information in the image printed by the printing unit which is read by a reading unit; and a print control unit configured to control printing by the printing unit, based on the acquired information relating to conveyance, wherein the watermark information is added to the image data with changing printing conditions, each of which is used for printing the watermark information, for each of the plurality of blocks.