I'm modifying an existing PDF, setting the encryption, and adding fields.
After spending over an hour debugging why when I set the encryption the
fields would disappear, I realized it's because the permissions I'm setting
on the PDF doesn't allow the modification of annotations. What I don't
understand is how setting the encryption level would effect it since it's in
the same PdfStamper "instance". First of all, I'm setting the encryption
right before adding the fields so PdfStamper should know I have have
permissions to add it, even though the encryption says otherwise.

Is there a way for me to add fields AND set the encryption where other users
cannot modify the annotations AFTER I've saved the PDF without the owner
password? It looks like I'm going to have to save the PDF without
encryption, then initialize a new PdfReader and PdfStamper just to set the
encryption afterwards. Is there a reason for this?

Thanks in advanced,
Lloyd
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