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How to encrypt a PDF file? In fact, there are many ways to encrypt, the key is to see how much you need to encrypt.

How to encrypt a PDF file? In fact, there are many ways to encrypt, the key is to see how much you need to encrypt.

Jenny, Sep 18,2023

online pdf converter merge compress or delete part of the text, or encrypt the whole PDF file, so that no one can open it.

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