Adobe PDF Encryption Security

[Jason Tedesco <jteddylists () gmail com>]

Howdy.

I have recently had a couple of separate enquires/research requests
around methods of securely sending PDF's to clients. One technology we
have been looking at is encrypted PDFs. Adobe state their security as
US DOD standards, and supports 128-bit AES and 256-bit AES encryption.
> From a security perspective, are there any known
issues/concerns/vulnerabilities around encrypted PDF content ?

Thanks.

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