One of the reasons PDF is such a popular format among computer enthusiasts is related to its security settings.
However, the restrictions assigned to any PDF file can be eventually removed by any third-party user, provided they have the appropriate applications.
These utilities will offer one the possibility to remove the owner and user passwords, as well as to disable the printing or editing restrictions.
In order to make sure that no PDF file to be unlock, one could rely on encrypting the PDF file before distributing it.
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