PRINTED MATTER MANUFACTURING DEVICE, PRINTED MATTER CERTIFICATION DEVICE, PRINTED MATTER, PRINTED MATTER MANUFACTURING METHOD, AND PRINTED MATTER CERTIFICATION METHOD

摘要

PPROBLEM TO BE SOLVED: To provide a printed matter manufacturing device which manufactures printed matter, the validity of which can be confirmed with high precision. PSOLUTION: Part or the entirety of symbol information to be printed in a printing medium is stored in a recording medium, then electronic watermark image information including part or the entirety of the symbol information as electronic watermark information, is generated in image information based on part or the entirety of the symbol information printed in the printing medium and the image information printed in the recording medium, and the printing medium is printed based on the generated electronic watermark image information. PCOPYRIGHT: (C)2004,JPO&NCIPI