| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a printing system for preventing the readability of a printing document from being degraded even in printing with watermark data. <P>SOLUTION: In the printing system, a printer driver 4 comprises a print condition setting means 12 for allowing a user to set an instruction whether to print a printing document 10 with watermark data and a printing condition of the watermark data, a data generation means 14 for generating the watermark data in accordance with the set printing condition and a conversion means 11 for converting the watermark data into printer description language data 16 and transmitting the data 16 to a printer 2. The printer 2 has a printing processing means 23 for generating the raster data 19 of the watermark data and the raster data 19 of the printing data in accordance with the printing condition when the watermark data are added to the printer description language data 16 transmitted from the printer driver 4, and prints out the two raster data in a superposed manner. <P>COPYRIGHT: (C)2008,JPO&INPIT |
