Yup, those would be Acrobat Pro settings.
Check out the document properties (CMD-D) of the pdf while open in Acrobat. There you can set security settings including a password to open the document, printing restrictions, etc…. However, it won’t keep a dishonest person from giving away password information when they disseminate the pdf. So its up to you how much you want to inconvenience your customers for the sake of “security”.
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