Tex script to combine snapshot created by IGV genomic browser

IGV_snapshot_combine.tex

\documentclass[landscape,letterpaper]{article}

\renewcommand{\rmdefault}{phv}      % Arial
\setlength{\oddsidemargin}{-0.9in}    
\setlength{\textwidth}{10.7in}         
\setlength{\textheight}{7in}         
\setlength{\topmargin}{-1.0in}         
\setlength{\headsep}{0.25in}         
\setlength{\parskip}{1.2ex}
\setlength{\parindent}{0mm}

\usepackage{graphicx}
\usepackage{hyperref}
\hypersetup{colorlinks=true}
\usepackage[dvipsnames]{xcolor}

\begin{document}

{\bf gene1_full_name}

\url{gene1_url}

gene1_location

Color abbreviations: {\bf {\color{green} A}, {\color{blue} C}, {\color{red} T}, {\color{Orange} G}}

\begin{figure}[!ht]
\begin{center}
    \includegraphics[scale = X]{snapshots/gene1.png}     % change X to a value between 0 and 1 to fit a snapshot to the file page size
\end{center}
\end{figure}

\cleardoublepage

{\bf gene2_full_name}

\url{gene2_url}

gene2_location

Color abbreviations: {\bf {\color{green} A}, {\color{blue} C}, {\color{red} T}, {\color{Orange} G}}

\begin{figure}[!ht]
\begin{center}
    \includegraphics[scale = X]{snapshots/gene2.png}     % change X to a value between 0 and 1 to fit a snapshot to the file page size
\end{center}
\end{figure}

% all other snapshots

\end{document}