instiki/app/views/wiki/tex.rhtml

\documentclass[12pt,titlepage]{article}

\usepackage[danish]{babel}      %danske tekster
\usepackage[OT1]{fontenc}       %rigtige danske bogstaver...
\usepackage{a4}
\usepackage{graphicx}
\usepackage{ucs}
\usepackage[utf8x]{inputenc}
\input epsf 

%-------------------------------------------------------------------

\begin{document}

\sloppy

%-------------------------------------------------------------------

\section*{<%= @page.name %>}

<%= @tex_content %>

\end{document}