Fonts at arbitrary sizes

Almost all fonts, nowadays, are provided with LaTeX control (fd) files, so the temptation to risk the problems of \newfont is usually easy to resist.

However, one temptation remains, arising from the way that LaTeX restricts the sizes of fonts. In fact, the restriction only significantly applies to the default (Computer Modern) and the Cork-encoded (T1) EC fonts, but it is widely considered to be anomalous, nowadays. In recognition of this problem, there is a package fix-cm which will allow you to use the fonts, within LaTeX, at any size you choose. If you’re not using scalable versions of the fonts, most modern distributions will just generate an appropriate bitmap for you.

So, suppose you want to produce a heading in Computer Modern Roman at 30 points, you might be tempted to write:

\newfont{\bigfont}{cmr10 at 30pt}
\begin{center}
  \bigfont Huge text
\end{center}

which will indeed work, but will actually produce a worse result than

\usepackage{fix-cm}
...
\begin{center}
  \fontsize{30}{36}\selectfont
  Huge text
\end{center}

Fix-cm has one or two omissions — fonts the LaTeX team did not consider useful, including the CM dunhill fonts (as CM, but with stretched ascenders) and the CM fibonacci font (which is only available in 8-point design size). If fix-cm doesn’t do the job, try the one of the type1cm (for CM fonts), type1ec (for EC fonts) or anyfontsize packages.

A further alternative might be to switch to the Latin Modern fonts (which provide a close simulacrum of the Computer Modern set); these fonts were scalable from their first distribution, and don’t therefore need any such trick as the above.

FAQ ID: Q-fontsize
Tags: latex–macros