[XeTeX] How can I encrypt (limit permissions) in my PDF?

[Ron Aaron]

That's great, though it doesn't help me now.  Is there a way to get the
new version of xdvipdfmx which supports this, or is it incompatible with
the TL 2009 xetex (e.g. the one I'm using w/ Kubuntu 10.10 -- aka
'maverick')?

When is TL 2011 due to appear?

Best regards,
Ron
> In TL 2011, you will be able to specify in a source file like
> \AtBeginDvi{\special{pdf:encrypt ownerpw (abc) userpw (xyz) length 128 perm 252}}
>