Hello,
I've discovered this marvelous method imagettftext()
http://uk3.php.net/manual/en/function.imagettftext.php
who allows a preview of a TTF font.
One problem : it only works when the font is in the same folder than the script.
"arial.ttf", when "http://www.mysite.com/data/arial.ttf", it doesn't work.
I must put my font in an other folder.
Thanks for helping me, Sylvain.