I'm very much a newbie to the whole autograph hobby, so excuse me if my question seems stupid

I realise Studio Fanmail sends PPs, and that they send them for free (am I right here?), but does anyone know if they send them out for free all around the world? (i.e. Australia in my case) Or just in America? Would I have to pay for shipping?
I'm thinking that if I can't get authentic autographs from some of my fave actors/actresses, I might just settle for a PP. If I can get it for free, why not, eh?