数字水印在无纸化办公中的应用

无纸化办公是当今各种企业、机关单位办公的发展趋势。无纸化办公环境是一个较为庞大的系统，在无纸化办公环境中会涉及到电子文件、档案的完整性、身份确认以及篡改识别等与安全和信息隐藏的相关的问题，值得我们关注。本文重点阐述数字水印技术在无纸化办公环境中确保文件安全的一些概念和方法，主要包括文件验证，密匙发布，数字公章等。

The application of Digital Watermarking in paperless office

Today, paperless office is the trend of various enterprises, department and units＇ office. Paperless office environment is a relatively large system. This environment involves integrity and identity confirmation of electronic documents, files, as well as tampering with idenlification which related to security and information hidden, and these worthy of our attenlion. This article focuses on a number of concepts and methods about the digital watermarking technology it. the paperless office environment that ensure file securily, mainly include the digital official figure, key applications, and document verification and so on.