Copy/Write Protection

Enchant any text, like a scroll or book, the text becomes incomprehensible through conventional means. Only the wielder of the book can comprehend what is written. The wielder of the book cannot convey (in any conventional way) what the text says and can no longer read the text once the enchanted object is no longer held by the wielder.

Using a spell to learn more about the affected object only reveals who was the caster of Copy/Write Protection, what time and date the spell was cast, and where the spell was cast.