How to make a DIN A5 Long flyer

 1\documentclass[cm]{article}
 2\usepackage[margin=0mm, footskip=0mm, paperwidth=299mm, paperheight=107mm]{geometry}
 3
 4\usepackage{graphicx} % Required for inserting images
 5
 6\pagestyle{empty}
 7
 8\begin{document}
 9
10% Add the images to the 'page' directory
11% Create the directory if it doesn't exist
12
13% Front side page ordering
14\includegraphics[height=105mm, width=72mm]{./page/1.png}
15\includegraphics[height=105mm, width=72mm]{./page/2.png}
16\includegraphics[height=105mm, width=72mm]{./page/3.png}
17\includegraphics[height=105mm, width=72mm]{./page/4.png}
18
19\newpage
20
21% Back side page ordering
22\includegraphics[height=105mm, width=72mm]{./page/5.png}
23\includegraphics[height=105mm, width=72mm]{./page/6.png}
24\includegraphics[height=105mm, width=72mm]{./page/7.png}
25\includegraphics[height=105mm, width=72mm]{./page/8.png}
26
27\end{document}