\documentclass{article}
\usepackage[cmyk]{xcolor}
\usepackage{tikz}
\usepackage{pgf}
\usetikzlibrary{fadings}
\usepackage{pgfpages}
\pgfpagesuselayout{resize to}[a4paper]
\begin{document}
\begin{tikzpicture}[remember picture,overlay]
\shade [top color=yellow,bottom color=red!50] (current page.north west)
rectangle (current page.south east);%
\end{tikzpicture}
\centerline{\Huge Hi Parsi\LaTeX{}}
\end{document}
It didn't produce the result of pdflatex! and it is so weird!
A similar output as that of pdflatex is obtained by xelatex
with the following for your special example.
Don't expect that it is applicable to other cases.
%
% xelatex
%
\documentclass{article}
\usepackage[cmyk]{xcolor}
%
%
\def\pdftexversion{140}
\def\pgfsysdriver{pgfsys-dvipdfm.def}
%
%
\usepackage{tikz}
\usepackage{pgf}
%
%
\makeatletter
\def\pgfsys@papersize#1#2{%
\pdfpageheight#2\relax%
\pdfpagewidth#1\relax}
\makeatother
%
%
\usetikzlibrary{fadings}
\usepackage{pgfpages}
\pgfpagesuselayout{resize to}[a4paper]
\begin{document}
\begin{tikzpicture}[remember picture,overlay]
\shade [top color=yellow,bottom color=red!50] (current page.north west)
rectangle (current page.south east);%
\end{tikzpicture}
\centerline{\Huge Hi Parsi\LaTeX{}}
\end{document}
--
Best regards,
Akira KAKUTO
--------------------------------------------------
Subscriptions, Archive, and List information, etc.:
http://tug.org/mailman/listinfo/xetex
