Secret code printing method, tracing method and system based on black-and-white printing file
A technology for printing documents and passwords, applied in the field of forensic identification or criminal science, it can solve the problems of poor accuracy and unsatisfactory inspection effect of the printing document formation time, and achieve the effect of improving accuracy and convenient use.
Pending Publication Date: 2020-10-13
袁迦萱
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Abstract
The invention provides a secret code printing method and system based on a black-and-white printing file and a tracing method and system. The secret code printing method comprises the following steps:obtaining the file to be printed; identifying at least one blank in the to-be-printed file; obtaining file information of a to-be-printed file; generating a secret code at at least one blank of a to-be-printed file according to a preset secret code rule and the file information; and printing a to-be-printed file containing the secret code by using a black-and-white printer. According to the method, after the secret code corresponding to the file information is generated on the to-be-printed file, printing can be completed at a time through the black-and-white printer, and use is convenient. The generated secret codes can be in one-to-one correspondence with the file information, so that the file information of the printed file can be identified subsequently through the secret codes, and the subsequent printed file tracing and inspection accuracy is improved.
Application Domain
Digital output to print units
Technology Topic
Software engineeringComputer printing +2
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PUM
Property | Measurement | Unit |
Diameter | 4.0 ~ 30.0 | nm |
Description & Claims & Application Information
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