设置文档的标题，主题，作者，关键词，造物主对加密的PD F文件(的)。

Set the document title, subject, author, keywords, creator to the encrypted PDF file (s).

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您必须是该文档或工作簿的作者或具有“完全控制”访问权限，才能更改权限设置。

You must be the author of the document or workbook or have Full Control access to be able to change the permission Settings.

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