Output
I obtained the following output with code given below:

\documentclass[oneside,english,a4paper, 12pt]{book}
\usepackage{a4wide, fullpage, color, fancyhdr, lastpage, changepage, multirow, calligra, graphicx}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{geometry}
\geometry{verbose,tmargin=2cm,bmargin=2cm,lmargin=2cm,rmargin=2cm}
\makeatletter
\let\ps@plain\ps@fancy% Plain page style = fancy page style
\makeatother
\providecommand*{\wb}[2]{\fontsize{#1}{#2}\usefont{U}{webo}{xl}{n}}
\newcommand*{\cdiam}{\prec\kern-2pt\succ}
\IfFileExists{upquote.sty}{\usepackage{upquote}}{}
\begin{document}
\begin{titlepage}
\fontfamily{pbk}\selectfont
\begin{adjustwidth*}{1.5cm}{2cm}
\vspace*{4.5\baselineskip}
\centering
\begin{picture}(600, 0)
\multiput(0, 110)(20, 0){20}{{\wb{10}{12}4}} % Top Line
\multiput(-5, 90)(0,-21){35}{\rotatebox{90}{{\wb{10}{12}4}}} % Left Line
\multiput(0,-630)(20, 0){20}{{\wb{10}{12}4}} % Bottom Line
\multiput(400,90)(0,-21){35}{\rotatebox{90}{{\wb{10}{12}4}}} % Right Line
\end{picture}
\end{adjustwidth*}
\end{titlepage}
\end{document}
I want to move the left border to more left and right border to more right. Also the bottom border is not joining with right and left border. Any help will be highly appreciated. Thanks

pictureenvironment: http://en.wikibooks.org/wiki/LaTeX/Picture#The_picture_environment_and_gnuplot – Nils L Jul 24 '14 at 11:47