Notepad... oh, nevermind. I guess you could take it to the Apple store and see if they will do it for you?
Annotating existing PGNs
What do you mean by annotating? Computer evaluations?
Curly braces are your friend. Try copying and pasting this into one of your pgn games after a move. {testing annotation}
Maybe because your asking about web-based or something, but couldn't you use chessbase to use pgn files and annotate them ? Thats how I'm doing it.
I totally asked the wrong question. For someone with ChessBase, what I want is a way of doing "training mode" on a Mac. Preferably web-based, but native Mac software would work.
Ozzie:
Here's a discussion on that subject in case you haven't already seen it.
http://www.chessforums.org/chess-software-recommended-websites/7991-fritz-trainer-mac.html
Is there web-based software for annotating a set of PGNs that I have? Or is there Mac client software for accomplishing the same?