%============================================================================
% XeLaTeX File
% Daniel J. Greenhoe
%============================================================================
\documentclass{article}
\usepackage{pstricks}
\usepackage{geometry}
\geometry{
  xetex,truedimen,
  paper=a3paper,
  %papersize={297mm,420mm},% A3 paper dimensions
  centering,twoside=false,noheadfoot,nomarginpar,ignoreall,
  inner=10mm,outer=10mm,top=10mm,bottom=10mm,
  showframe
  }
\begin{document}%
\thispagestyle{empty}%
\mbox{}\vfill%
\psset{unit=1mm}%
\fbox{\begin{pspicture}(-130,-180)(130,180)%
  \psframe[linewidth=3pt,linecolor=red](-100,-50)(100,50)%
  \rput(0,0){\Huge$\cdot$}%
\end{pspicture}}%
\\\vfill%
\end{document}%