Chapter 11. Introducing MetaFont
TeX builds pages out of boxes and glue. The smallest boxes are usually individual characters. MetaFont is a tool that creates the actual characters.
In the last few years, a real explosion has taken place in the number of readily available fonts. Today, many people have access to a large number of high quality typefaces. Not too long ago (before Adobe Type Manager (ATM) was available for the Macintosh and Microsoft Windows), fonts were too expensive to be generally available. In those days, a font building tool like MetaFont was essential if TeX was going to have a number of typefaces and a large number of mathematical symbols. Today, the role of MetaFont is diminishing. Many people choose to use PostScript fonts almost entirely. In fact, with PostScript alternatives to the Computer Modern Math fonts now available, it's possible to use TeX without using MetaFont fonts at all.
On the other hand, lots of people do still use the Computer Modern fonts, and there are many other MetaFont fonts (for non-English languages like Arabic and Japanese, for example), so MetaFont is still a useful tool. Also, it can be used to make nice portable diagrams.
This chapter cannot teach you how to harness all of MetaFont's power. The only practical way to learn how to design your own images with MetaFont is to read The \MF{}book [kn:mfbook] (even if your images are nowhere near as complex as an entire font).
What you will learn from this chapter is how to run MetaFont ...
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