\documentclass[18pt]{article}
%\usepackage[T1]{fontenc}
%\usepackage[latin1]{inputenc}
\usepackage{geometry}
\geometry{verbose,letterpaper,landscape,lmargin=1in,rmargin=1in}
\usepackage{graphicx}

\makeatletter
\usepackage{psfrag}
%\usepackage{babel}
\makeatother
\begin{document}

\scalebox{0.28}{
\input{graph.dot.tex}
\includegraphics{graph.dot.ps}
}

\end{document}
