<HTML> <HEAD> <!-- Created with AOLpress/2.0 --> <!-- AP: Created on: 6-Dec-2000 --> <!-- AP: Last modified: 16-Apr-2004 --> <LINK REL="icon" href="ffanvil16.png"> <TITLE>sfd extension</TITLE> <LINK REL="stylesheet" TYPE="text/css" HREF="FontForge.css"> </HEAD> <BODY> <DIV id="in"> <P> Yes, I know it stands for sub-file directory on the dear old PDP-10s. <P> But they aren't really around any more, so I'll reuse it. And probably nobody else remembers them... <P> Oh, it's also used by TeX for Sub Font Definition files (see ttf2afm). </DIV> </BODY></HTML>