Printing implementing method

A printer and file printing technology, which is applied in the direction of digital output to printing units, instruments, and electronic digital data processing, etc., can solve problems such as hidden dangers, low printing security, and the inability of users to know the printing driver, so as to improve printing security, The effect of avoiding information leakage

Inactive Publication Date: 2015-04-15
天津书生软件技术有限公司
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  • Abstract
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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 print data, thus making printing

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  • Printing implementing method

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[0027] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail 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 in the present invention. Such as figure 2 As shown, the printing realization method in the present invention includes:

[0030] Step 201: Analyze 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 pro...

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Abstract

The invention discloses a printing implementing method. The method comprises generating a corresponding page bitmap according to a file to be printed; transforming the page bitmap into a corresponding format for a target printer instead of calling a common GDI (graphics device interface) function in a Windows operating system; directly outputting the transformed page bitmap to the target printed through a hardware port instead of a port in the Windows operating system. Therefore, printing data interception of applications such as Hook can be avoided. Meanwhile, printing data generated in the printing implementing method is the page bitmap instead of various vector graphics or text messages, so that even when the printing data are intercepted in other ways, information in the file to be printed is still difficult to recover, and further the printing security can be improved.

Description

technical field [0001] The invention relates to printing technology, in particular to a printing realization method capable of improving printing security. 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 realized through the following steps: [0003] Step 101, installing 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 printer manufacturer. [0004] Step 102, the application program calls the relevant application program interface (API) function in the Windows operating system to create a printer device context (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 driver of the cor...

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Application Information

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IPC IPC(8): G06F3/12
CPCG06F3/1222G06F3/1244
Inventor 王东临
Owner 天津书生软件技术有限公司
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