IMSLP Forums

I'm hoping that someone will be able to help me with this, because I would really like to post this score. I have a pdf file of Moriz Rosenthal's "Faust Fantasie" (ded. to Josef Hofmann) and, though I'm almost positive that it is a typeset, the name of the typesetter was not included. When I put my mouse over the pdf icon, in the little info box that appears after a couple of seconds, it says Author: Natsui Makoto. Should I post the score and list him as the typesetter, or can I not post it at all?
I appreciate any help with this,
Thanks.