please review 'application/pdf'

[Keith Moore]

> In the end, it's just a file format that includes an
> some ACL bits. It seems legitimate to describe what
> ACL bits are intended to mean in a description of
> a protocol or protocol element or file format,
> whatever the mechanisms might be for actual enforcement
> of those bits.

yup.  just as long as there isn't any statement to the effect that 
implementations are expected to honor those bits.

Keith