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\usepackage[landscape,margin=1cm]{geometry}
\usepackage{graphicx}
\begin{document}
\pagenumbering{gobble}
\begin{figure}[p]
\centering
\includegraphics[page=1,trim={0 11.5cm 14.85cm 0},clip=true,width=\paperwidth]{TI-WS1213-001-020-4}
\end{figure}
\newpage
\begin{figure}[p]
\centering
\includegraphics[page=1,trim={14.85cm 11.5cm 0 0},clip=true,width=\paperwidth]{TI-WS1213-001-020-4}
\end{figure}
\newpage
\begin{figure}[p]
\centering
\includegraphics[page=1,trim={0 0 14.85cm 11.5cm},clip=true,width=\paperwidth]{TI-WS1213-001-020-4}
\end{figure}
\newpage
\begin{figure}[p]
\centering
\includegraphics[page=1,trim={14.85cm 0 0 11.5cm},clip=true,width=\paperwidth]{TI-WS1213-001-020-4}
\end{figure}
\end{document}