Method and device of embedding watermark information into printing content

Abstract

The invention discloses a method and a device of embedding watermark information into printing content. According to the method of embedding the watermark information into the printing content, printing requests sent by a processing unit are received, the printing requests comprise printing identification information, printing content and printing equipment information, watermark information is generated by utilizing the printing identification information, the printing content is converted into picture formats, the watermark information is embedded into the printing content of the picture formats to obtain intermediate temporary files, the intermediate temporary files are converted into to-be-printed electronic files, and the to-be-printed electronic files are sent to the printing machine corresponding to the printing equipment information for printing. The printing identification information which serves as the watermark information is embedded into the printing content, and therefore traceable management of the printing content can be achieved.

Description

technical field [0001] The invention relates to the security field, in particular to a method and a device for embedding watermark information in printed content. Background technique [0002] In order to strengthen the security management of electronic information, it is necessary to track and manage the printed content. At present, the tracking management method mainly adopted is to embed watermark information in printed files, and the schemes of embedding watermark information can be mainly divided into static embedding and dynamic embedding. Among them, in the static embedding solution, the watermark information is embedded in the file by editing before printing. The clear defect of this solution is that dynamic information such as identification information and time information related to printing cannot be embedded in real time, so when the printed material leaks, it is difficult to determine the leaker based on the watermark information. In the dynamic embedding sch...

AI Technical Summary

Problems solved by technology

The clear defect of this scheme is that dynamic information such as identification information and time information related to printing cannot be embedded in real time, so when the printed material leaks, it is difficult to determine the leaker based on the watermark information

Since the dot matrix image data needs to be obtained from the printer driver, printers of different brands and different series of products of the same brand of printers use different drivers, so the cost of implementing this solution is relatively high

In addition, in the dynamic embedding scheme, only the relevant information of the printer can be embedded, and the user terminal and user identity information cannot be embedded, so when the printing material is leaked, it is still impossible to locate and trace the leaker

Images