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给PDF文件加密

2012-03-06 10:42:16| 分类： PDF | 标签： |举报 |字号大中小订阅

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打开Adobe Acrobat 8 Professional软件，在菜单栏选择：“高级”→ “安全性”→ “口令加密”如下图所示：
给PDF文件加密 - yiliyumili - 一粒玉米粒

单击“口令加密”后勾选“许可”下方的“限制文档编辑和打印。改变这些许可设置需要口令(R)” ：

给PDF文件加密 - yiliyumili - 一粒玉米粒

一般加密PDF文件，是限制文档编辑和打印。只要在“更改许可口令”里输入密码口令，就可以了，然后保存PDF文件。

当再次打开该PDF文件时，标题栏会出现“已加密”字样，如下图：

给PDF文件加密 - yiliyumili - 一粒玉米粒

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