I'm a horn player, I can generally transpose at sight anyway (though at the
organ I prefer not to do this with anything too complex; there are a lot
more notes at a time), and I always forget this is something other people
might want...!
But if you have MusicXML or even MIDI for your part, you can transpose it
and then print it out. If you have a PDF which is what most of the public
domain scores will be in, you're out of luck anyway.
Re: I'm educated
I'm a horn player, I can generally transpose at sight anyway (though at the organ I prefer not to do this with anything too complex; there are a lot more notes at a time), and I always forget this is something other people might want...!
But if you have MusicXML or even MIDI for your part, you can transpose it and then print it out. If you have a PDF which is what most of the public domain scores will be in, you're out of luck anyway.