[Tex/LaTex] Options for font size

fontsize

What do I put in the \documentclass so that I can change the font size to any value? I'm asking because for {extarticle} 13pt isn't an option. So what do I do?

Best Answer

As stated by @TorbjørnT., the KOMA-classes allow one to use arbitrary font sizes as the base size. The important notice here is that one should load the \RequirePackage{fix-cm} package before \documentclass. This way, you can avoid size substitution which usually occurs when choosing a non-standard fontsize (11.5, 13, 15, etc.). Refer to the KOMA-script manual for more details. Here is an example: 

\RequirePackage{fix-cm}
\documentclass[fontsize=13pt,DIV=12]{scrartcl}
\usepackage{lipsum}
\usepackage[T1]{fontenc}
\usepackage{lmodern}

\begin{document}

\lipsum

\end{document}
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