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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

Active Publication Date: 2007-04-18
BEIJING FOUNDER ELECTRONICS CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a document printing method, device and system, which are used to solve the problems of cumbersome printing of documents embedded with digital watermarks, difficulty in realization and poor flexibility existing in the prior art

Method used

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  • File printing method, device and system
  • File printing method, device and system
  • File printing method, device and system

Examples

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Embodiment Construction

[0043] The idea of ​​the present invention is to locate all the text areas, picture areas and graphics areas in the publication page when the printer driver analyzes and interprets the page data, and then captures the interpreted related bitmap image data before sending to the printout device , the data can also be obtained through shared memory, shared files or network transmission. The dot matrix data after the watermark is covered to the relevant position in the original document, and then sent to the printing device for output, thereby constituting a safe printing method of the document. The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0044] Fig. 1 is a schematic diagram of the implementation process of the document printing method. As shown in the figure, the implementation of the document printing method of the present invention may include the following steps:

[0045] Step 101, analyzing and...

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PUM

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Abstract

The invention discloses a method, device and system for implementing document printing by embedded digital watermark information, comprising: obtaining dot array iamge data of a to-be-printed document; embedding digital watermark information into the dot array image data; and printing the dot array image data. And the printing course is simple and the printing has good flexibility; it need not manually separate picture contents from character contents, further raising working efficiency; it has a wide application range and brings about very great convenience to the most common office document printout. Further, it prevents the possibility of modifying and destroying the watermark information inserted in important documents, thus largely enhancing safety coefficient and having important application value.

Description

technical field [0001] The invention relates to the technical field of document printing, in particular to a method, device and system for realizing safe printing of documents by using embedded digital watermark information. Background technique [0002] With the rapid development of computer networks and multimedia systems, digital media (digital audio, digital image, digital video) are widely used, and the copyright protection and integrity protection of digital media has become an urgent problem to be solved. Among them, important documents are not only stored in the computer in digital format, but can also be transmitted in the form of paper by printing, scanning, copying and other methods. In fact many paper documents (such as contracts, bills, etc.) are more valuable than those multimedia such as audio, video or images. With the application and popularization of equipment such as computers, printers and scanners, copying and reproduction technology has become relative...

Claims

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Application Information

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IPC IPC(8): H04N1/32H04N1/00G06F3/12G06T1/00
Inventor 亓文法李晓龙张华
Owner BEIJING FOUNDER ELECTRONICS CO LTD
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