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Print implementing method

A technology for printers and printing files, applied in the field of printing, can solve problems such as hidden dangers, low printing security, and opaque printing drivers, and achieve the effect of improving printing security and avoiding information leakage

Active Publication Date: 2009-04-15
北京书生电子技术有限公司
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0014] 2) The print driver is usually provided by the manufacturer of the corresponding printer, and the print driver is opaque, and the user cannot know whether the print driver contains a monitoring program for intercepting the print data, so there is a security risk of leaking print data in printing
But the print driver cannot limit the above printing modes
[0018] It can be seen that there are many potential safety hazards in the existing printing implementation method, which makes the printing security lower

Method used

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Embodiment Construction

[0027] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] In the present invention, a corresponding page bitmap is generated according to the file to be printed, and then the generated page bitmap is converted into a format corresponding to the target printer and output to the target printer.

[0029] figure 2 It is a schematic flow diagram of the printing realization method of the present invention. Such as figure 2 As shown, the printing realization method in the present invention includes:

[0030] Step 201: parse the file to be printed, and generate graphic metadata representing the information in the file to be printed.

[0031] In this step, it is possible to traverse the file to be printed and analyze it to decompose graphic metadata, such as fonts, graphics, and images. The operation proce...

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PUM

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Abstract

The invention discloses a method for realizing printing. In the invention, corresponding web page bitmap is generated according to a file to be printed; the generated web page bitmap is converted to a corresponding format of a target printer while a public GDI function in Windows operation system does not need to be called; the generated web page bitmap is output to the target printer by a hardware port directly but not by the port in the Windows operation system, thus avoiding applications similar to Hook program intercepting print data; furthermore, the print data generated in the invention is web page bitmap but not various vector graphs or text information, therefore even if the print data is intercepted by other ways, the information in the file to be printed is not easy to be recovered, thus improving the security of printing.

Description

Technical field [0001] The present invention relates to printing technology, in particular to a printing realization method capable of improving printing safety. Background technique [0002] Electronic documents can be printed into paper files through printers for easy circulation and archiving. See figure 1 , The existing printing implementation method can be implemented through the following steps: [0003] Step 101: Install a print driver matching the target printer in the Windows operating system, where the print driver matching the target printer is usually provided by the manufacturer of the printer. [0004] Step 102: The application program calls a related application program interface (API) function in the Windows operating system to create a printer device description table (DC). [0005] Step 103: Call different graphics device interface (GDI) functions in the Windows operating system, process the file to be printed to obtain print data, and send it to the print driv...

Claims

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Application Information

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IPC IPC(8): G06F3/12
Inventor 王东临
Owner 北京书生电子技术有限公司
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