| 摘要 |
To provide a document management apparatus capable of protecting documents including a document free of the control of the document management apparatus in accordance with a document mode without requiring any complicated user operation. The document management apparatus comprises a document management unit for managing a mode indicating a registration state of a registered document, a rule management unit for managing a rule restricting a function that can be executed by a user in relation to the document, a rule application unit for selecting the rule in accordance with the mode of the document, and an encryption unit for encrypting the document based on the rule.
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