merge_bkg_plots.tex

\documentclass{article}
\usepackage{graphicx}
\usepackage{array}
\usepackage[paperwidth=30in,paperheight=35in]{geometry}
\usepackage{booktabs}

\setlength{\tabcolsep}{0pt}


\begin{document}
    \begin{table}
        \centering
            \begin{tabular}{ccc}
                \multicolumn{3}{c}{\includegraphics[width=\linewidth, trim={1.31cm 0.08cm 1.98cm 0 },clip]{bstar_bkg_plots/legend_pad.pdf}}\\[-4pt]
                    \includegraphics[trim={    0 1.4cm 0.95cm 0.85cm},clip]{plots/medium/data_2016/Bkg_new_bb.pdf}
                & \includegraphics[trim={1.9cm 1.4cm 0.95cm 0.85cm},clip]{plots/medium/data_2017/Bkg_new_bb.pdf}
                & \includegraphics[trim={1.9cm 1.4cm 0.95cm 0.85cm},clip]{plots/medium/data_2018/Bkg_new_bb.pdf}\\[-4pt]
                    \includegraphics[trim={    0 1.4cm 0.95cm 0.85cm},clip]{plots/medium/data_2016/Bkg_new_bq.pdf}
                & \includegraphics[trim={1.9cm 1.4cm 0.95cm 0.85cm},clip]{plots/medium/data_2017/Bkg_new_bq.pdf}
                & \includegraphics[trim={1.9cm 1.4cm 0.95cm 0.85cm},clip]{plots/medium/data_2018/Bkg_new_bq.pdf}\\[-4pt]
                    \includegraphics[trim={    0 1.4cm 0.95cm 0.85cm},clip]{plots/medium/data_2016/Bkg_new_mumu.pdf}
                & \includegraphics[trim={1.9cm 1.4cm 0.95cm 0.85cm},clip]{plots/medium/data_2017/Bkg_new_mumu.pdf}
                & \includegraphics[trim={1.9cm 1.4cm 0.95cm 0.85cm},clip]{plots/medium/data_2018/Bkg_new_mumu.pdf}\\[-4pt]
                    \includegraphics[trim={    0   0 0.95cm 0.85cm},clip]{bstar_bkg_plots/bkg_bstar_2016.pdf}
                & \includegraphics[trim={1.9cm   0 0.95cm 0.85cm},clip]{bstar_bkg_plots/bkg_bstar_2017.pdf}
                & \includegraphics[trim={1.9cm   0 0.95cm 0.85cm},clip]{bstar_bkg_plots/bkg_bstar_2018.pdf}\\[-4pt]
            \end{tabular}%
    \end{table}
\end{document}