fixed scaling for a4 paper

chapters/campus_map.tex

-\newgeometry{top=.5cm, bottom=2cm, left=.5cm, right=.5cm}
-{\flushleft
-    \includegraphics[height=.9\paperheight, trim= .25cm 2.8cm 14.8cm 0, clip]{campusplan.pdf}
-}
-\newpage
-{\flushright
-    \includegraphics[height=0.9\paperheight,trim= 14.8cm 2.8cm .25cm 0,clip]{campusplan.pdf}
-}
+\newgeometry{top=2cm, bottom=2cm, left=.5cm, right=.5cm}
+
+% trim=left bottom right top -- mind the symmetry so they are scaled exactly the same
+\includegraphics[width=\textwidth, trim= .25cm 2.8cm 14.8cm .25cm, clip]{campusplan.pdf}
+\clearpage
+\includegraphics[width=\textwidth,trim= 14.8cm 2.8cm .25cm .25cm, clip]{campusplan.pdf}
+
 \restoregeometry

chapters/qr-and-license.tex

 \newgeometry{top=3cm,right=2cm,left=2cm,bottom=3cm}
+
 \begin{center}
     \begin{Huge}
         \textbf{Aktualisierungen dieses Hefts}\\
@@ -11,4 +12,5 @@
     \vspace*{\fill}
     Readme.txt © {\the\year} von der Fachschaft Angewandte Informatik der Ruhr-Universität Bochum ist lizenziert unter CC BY-NC-SA 4.0. Eine Kopie dieser Lizenz ist zu finden unter https://creativecommons.org/licenses/by-nc-sa/4.0/
 \end{center}
+
 \restoregeometry
\ No newline at end of file