Word document copyright protection method

Abstract

The invention relates to a word document copyright protection method which mainly comprises the following steps: making a copyright identifier with a TrueType character editor, and generating a key; embedding the copyright identifier into a word document; and carrying out copyright detection with the key. By utilizing the display characteristics of the TrueType character editor and the Windows word stock in the present universal Windows operating system as well as some functions in the word processor, the invention implements word document copyright protection through design integration without special programming. The method is easy and simple to implement, has favorable universality, and can be freely used by any person familiar with Windows operation. The embedded copyright identifier is 100% invisible, and does not influence reading. After the word document processed by the method is deleted, added, replaced, typeset, compressed or decompressed, the copyright information can not be missing.

Description

technical field [0001] The invention relates to a method for copyright protection of text documents, in particular to a method for copyright protection of word documents. Background technique [0002] At present, the copyright protection of text documents is still in the research stage. Among them, Chinese patent 200510077471.3 provides "a method for embedding and extracting watermarks in English texts", which can be used for copyright protection of English texts. This method converts copyright information into binary Number, and the copyright information (that is, digital watermark) is embedded in the English text through programming operations, and the reverse operation is performed during detection to extract and restore the embedded copyright information. The main advantage of this method is that it has a strong ability to resist format conversion attacks, and it will not affect reading due to the existence of copyright information (ie digital watermark), but it has the ...

AI Technical Summary

Problems solved by technology

[0003] 1. Only applicable to English documents

[0004] 2. Complicated calculations, difficult programming, and difficult implementation

[0005] 3. The added watermark information will increase the capacity of the host document, which is not good for storage and transmission

[0006] In text documents, the use of word documents is the most common, and it has become the main carrier of text documents. For example, works such as some novels, essays and papers are made by word, but so far, there is no effective The method can carry out copyright protection on word works. For this reason, the majority of word users have been looking forward to a simple and effective word copyright protection method.

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