\begin{figure}[htpb]
\centering
- \includegraphics[width=0.9\linewidth]{images/Fenstergrundposition-en.png}
- \caption{The four windows. Courtesy by Olaf.}
+ \includegraphics[width=\linewidth,keepaspectratio]{images/Fenstergrundposition-en.png}
+ %\caption{The four windows. Courtesy by Olaf.}
\label{fig:Fenstergrundposition-en}
\end{figure}