diff --git a/templates/tex/latex_base.tplx b/templates/tex/latex_base.tplx
index 95ced8f..901384f 100644
--- a/templates/tex/latex_base.tplx
+++ b/templates/tex/latex_base.tplx
@@ -37,7 +37,7 @@ it introduces a new line
 
 ((*- block data_png -*))
 \begin{center}
-\includegraphics[width=0.7\textwidth]{(((output.key_png)))}
+\includegraphics[width=0.7\textwidth, height=0.9\textheight, keepaspectratio]{(((output.key_png)))}
 \par
 \end{center}
 ((*- endblock -*))