Originally Posted by Katsunami
This is indeed correct; and the more fonts you put on, the slower it responds.
Doesn't the dialog get too big when you install 10 fonts? AFAIK, you can't hide any without jailbreaking.
10 of your own plus all the other ones that are there is the limit. You see the top part of line spacing and margin and can still press them. If you have an embedded font, it will add one more and you can't press the buttons.