The best application for graphic designers is probably FontCreator. This program allows them to use thousands of fonts in their applications. It also provides them with much more flexibility and control. This is because it can be used on just about any kind of file. However, most designers are only familiar with it for Mac users.
However, if you don't want to pay for it, there is a free application called ImageSpan. It's free. What it offers is the same as FontCreator, but it has fewer features. It is still better than nothing though. When you download it you can get all the features that you need and have all the fonts that you want. It is only important that you use a disk space that is good enough for you to install it.
Some people prefer to use the freeware application because they just want a simple application. If this is the case, then you should also consider Free fonts app. It is probably the most popular of the free fonts. Unlike the other programs that offer hundreds of fonts, this program only has about four hundred. It may not be so useful for beginners, but for expert and advanced designers, it is a great choice. You can find a lot of information about it on the Internet.