For those days when you’re stuck at a library, away from linux computers, winedt installations, or any local way to convert tex; and that lab report needs one correction to the source before you can print it out and turn it in (due in five minutes), science soft offers an online converter.
I haven’t triedit yet, but there have been plenty of times in the past when I’ve desperately wanted something like this (Do I turn in the bad pdf I made this morning? do I run home, and come to class an hour late? do I spend the time installing everything? do I have permissions on this computer to do all that?)