Quote:
Originally Posted by bretbw
Here is a sample password protected PDF.
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This isn't readable with Desktop Adobe Digital Editions or with the Desktop Sony Library. So the problem seems to be with Adobe Digital Editions, rather than with Amazon. This is a strange oversight, since almost all 3-rd party PDF readers support passwords. Even some readers without a keyboard support passworded PDFs.
Passwords are not much protection for PDFs. There are "recovery tools" which will find the password for you, and if you already know the password many 3rd party PDF tools will produce a password-free version, see
PDF & password. Based on the content, my guess is that putting password free copies on a KDX would be a problem in case the KDX is lost. The password is not much protection, but it is some protection.