Preview.app DOES in fact encrypt PDF's with 128 bit! Yay

Hello good people on Apple Discussions,
I just wanted to share my recent discovery that Preview.app actually does use 128 bit encryption.
The program GuaPDF can display additional information about PDF's and this is what I found:
https://docs.google.com/leaf?id=0B19T3w95-UkWMTQ0YTZlMTgtMGE5Zi00YjU1LTlhMTgtYmM 1NTI3NjNkZGRi&hl=en
Good luck!
Luuc.

Just wanted to add to the knowledge base

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