Cary Bass wrote:
After speaking with a Swiss German user--he seems to be under the impression that "pd" stands for "Pressdokumentation"; literally "Press documentation" or "Press kit" as we commonly refer to it in the US.
Yes, that context would be more reasonable since other pictures on this website (as far as I have checked them) have e.g. ''Reuters'' instead of ''pd'' ( http://www.nzz.ch/nachrichten/international/suedafrikas_praesident_bietet_ar...). And Reuters definitely is not a licence, but the source/author.
Cecil