On wo 14-mei-2014 14:48
Nicolas Goaziou <n.goaziou@gmail.com> wrote:

> [...]
>> How do they differ from, say 'subject'?  
> 
> "subject", which refers to :description property, only contains a
> single string, no Org syntax. OTOH, TITLE and AUTHOR keywords have
> their contents parsed and, as such, can contain parsed objects. E.g.,
> 
>   | keyword     | value       | property value             |
>   |-------------+-------------+----------------------------|
>   | DESCRIPTION | some *text* | "some *text*"              |
>   | TITLE       | some *text* | ("some" (bold ... "text")) |
> 
> See also `org-element-document-properties'.
>

Thanks, this section made the click for me. 

I think I sort of assumed that 'LateX codes' in author and title were
just going to be dropped by the hyperref package itself to produce the
properties.

I'm not sure I can find the time to produce a better patch, this is
uncharted territory for me, so it will take some learning effort.

Thanks again,

marcel