Adobe PDF crypto

[Frank BENNETT <bennett@example.com>]

Plea for non-technical help this time.

I'm writing a short article for a Japanese law journal on encryption
and its implications for the law.  I want to include a few words
about encrypted PDF.  If anyone knows what encryption method is
used in these files, I would be most grateful for the info.

Probably best to send privately.  I'll mail a reference to the
article when it's done.

Cheers,
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-x80
Frank G Bennett, Jr         @@
Faculty of Law, Nagoya Univ () email: bennett@example.com
Tel: +81[(0)52]789-2239     ()