I was trying to install some new fonts and I couldn't figure out what a TrueType font (TTF) was compared to a PostScript (or Type 1) font is. Here is a simplistic explanation.
These are fonts that are generally installed on your computer by default. They are easy to use and generall reside in c:\windows\fonts. The only downside to these fonts is that they are designed to work up to 600 dpi (a standard laser printer) which does little good if you send your work to a printer.
There official full name is "Adobe Type 1 PostScript fonts." These fonts are similar to TTF, but they are designed to work up to 2400 dpi, which is what print shops use. You would pretty much always use this if you can, but they can be more annoying to use, so I read, becuase when Adobe products install them, each program makes its own font folder. In all OSes except Windows NT, 2000 and XP, you need to buy Adodbe Type Manager (ATM) to use them. So, from what I can tell, you would use these types of fonts if you can, because they are better quality.
Last updated 02 May 2005.