File printing method, device and system
A printing device and printing system technology, applied in the direction of digital output to printing units, instruments, calculations, etc., can solve the problems of poor flexibility, difficult implementation, and cumbersome document printing, and achieve convenient printing output, simple printing process, and tamper-proofing. and the effect of the possibility of destruction
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[0043] The idea of the present invention is to locate all the text area, picture area and graphic area in the publication surface when the printer driver analyzes and interprets the layout data, and then intercepts the interpreted related dot matrix image data before sending it to the printout device The data can also be obtained through shared memory, shared files or network transmission. The idea of the present invention is to intercept the dot matrix image data that needs to be printed before printing, and then embed the digital watermark information in the positioned areas, and finally embed The watermarked dot matrix data is covered to the relevant position in the original document, and then sent to the printing device for output, thus constituting a secure printing method of the document. The specific implementation of the present invention will be described below with reference to the accompanying drawings.
[0044] Figure 1 is a schematic diagram of the implementation ...
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