diff --git a/backside.tex b/backside.tex
index 7dabff3..0bcb0d4 100644
--- a/backside.tex
+++ b/backside.tex
@@ -1,15 +1,14 @@
 
-\newgeometry{left=60mm, right=15mm, top=20cm, bottom=2.5cm}
-
-\cleardoublepage
+\null\newpage
 \thispagestyle{RWBackside}
+\newgeometry{outer=62mm, inner=15mm, top=20cm, bottom=2.5cm}
 
 \mbox{ }\vfill % pushing following text to bottom ;-)
 
 Dieses Dokument wurde nur unter der Verwendung von Open Source Software erstellt:\\
 
 \definecolor{tableRow1}{RGB}{255,255,255}
-\begin{tabularx}{\textwidth}{lX}
+\begin{tabularx}{\textwidth}{@{}lX}
 {\fontspec{Latin Modern Roman}\hologo{LuaLaTeX}} & \url{http://www.luatex.org/} \\
 %Scribus & \url{https://www.scribus.net/} \\
 Inkscape & \url{https://www.inkscape.org/} \\
@@ -20,26 +19,3 @@ LibreOffice & \url{https://www.libreoffice.org/} \\
 pdftk & \url{https://www.pdflabs.com/} \\
 Linux & \url{https://www.linux.org/}
 \end{tabularx}
-
-% \begin{figure}[b]
-%   \begin{subfigure}[b]{0.22\textwidth}
-%     \begin{center}
-%       \vspace{-14pt}
-%       \includegraphics[width=\textwidth]{Bilder/opensource.pdf}
-%     \end{center}
-%   \end{subfigure}%
-%   \hfill%
-%   \begin{subfigure}[b]{0.72\textwidth}
-%     Dieses Dokument wurde nur unter der Verwendung von Open Source Software erstellt:\\
-%
-%     \begin{tabularx}{\textwidth}{lX}
-%     {\fontspec{Latin Modern Roman} \LaTeX} & \url{https://www.latex-project.org/} \\
-%     Scribus & \url{http://www.scribus.net/} \\
-%     Inkscape & \url{http://www.inkscape.org/} \\
-%     The Gimp & \url{http://www.gimp.org/} \\
-%     LibreOffice & \url{http://de.openoffice.org/} \\
-%     pdftk & \url{http://www.pdfhacks.com/pdftk/} \\
-%     Linux & \url{http://www.linux.org/}
-%     \end{tabularx}
-%   \end{subfigure}
-% \end{figure}
diff --git a/main.tex b/main.tex
index 0ba6bf2..fb42c65 100644
--- a/main.tex
+++ b/main.tex
@@ -264,20 +264,11 @@ Für den Stabtunnel wird die Mitte des Schrägbands markiert. Das Schrägband an
 
 
 
-
-
-
-
-
-
-
 \cleardoublepage
 \input{teilnehmer.tex}
 
 \newpage
 \listoffixmes
 
-\input{backside.tex}
-
 
 \end{document}
diff --git a/styles.tex b/styles.tex
index 83ec32e..b42871e 100644
--- a/styles.tex
+++ b/styles.tex
@@ -30,6 +30,28 @@
 \usepackage{varioref}
 \usepackage{csvsimple}
 
+\usepackage{refcount,lastpage}
+\usepackage{kantlipsum}
+\makeatletter
+\newcommand{\checkmultipleoffour}{%
+  \count@=\getpagerefnumber{LastPage}%
+  \count@=\the\numexpr\count@+1\relax
+  \@tempcnta=\count@
+  \divide\@tempcnta by 4
+  \multiply\@tempcnta by 4
+  \count@=\numexpr\count@-\@tempcnta\relax
+  \ifnum\count@>0
+    \pagestyle{empty}
+    \loop\ifnum\count@<3
+      \null\clearpage
+      \advance\count@\@ne
+    \repeat
+  \fi
+  \input{backside.tex}
+}
+\makeatother
+\AtEndDocument{\checkmultipleoffour}
+
 % font settings
 \directlua{
   fonts.handlers.otf.addfeature{
@@ -74,6 +96,7 @@
 %\addtocontents{toc}{\cftpagenumbersoff{subsection}}
 %\addtocontents{toc}{\cftpagenumbersoff{subsubsection}}
 \renewcommand{\cftsecfont}{}
+\renewcommand{\cftsecpagefont}{}
 
 \pagenumbering{arabic}
 
@@ -273,7 +296,7 @@
 \DeclareNewLayer[%
   align=tl,
   hoffset=15mm,
-  voffset=22.2cm,
+  voffset=21.7cm,
   width=35mm,
   height=60mm,
   contents={%