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Hi! How do I encrypt a pdf on here from my iPhone 11?
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Not possible with Acrobat Reader.
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This question has nothing to do with the Acrobat Reader mobile app.
You should consult with Apple support.
See here:
Now, if you're actually asking about how to protect a PDF with a password using the Acrobat Reader mobile app ( so that no one can open it), that is a new feature that was introduced in the last update.
When it comes to using the term "encrypt' interchangeably with "password protected", it creates confusion; since when you apply password protection to a document file it doesn't necessarily mean that it is also applying encryption to a document.
If you're using the Acrobat Reader mobile app in an iOS device, open a PDF file and see if you get the following options (see slides below; at least in Android this is a new feature that was introduced in the last Acrobat Reader mobile app update):
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When you set a PDF password, the rules of PDF say it must be encrypted. So it's not a bad synonym.
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Thanks for clarifying that.
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Without a subscription you can't set a password.