diff --git a/presentations/ImageOnly/README.md b/presentations/ImageOnly/README.md
new file mode 100644
index 0000000..e3d582f
--- /dev/null
+++ b/presentations/ImageOnly/README.md
@@ -0,0 +1,4 @@
+## Credit
+
+This was asked as a [question on StackExchange](http://tex.stackexchange.com/a/287054/5645).
+[Ignasi](http://tex.stackexchange.com/users/1952/ignasi) aswered it.
\ No newline at end of file
diff --git a/presentations/ImageOnly/Vortrag-Martin.tex b/presentations/ImageOnly/Vortrag-Martin.tex
index 5fdacdf..fad0f64 100644
--- a/presentations/ImageOnly/Vortrag-Martin.tex
+++ b/presentations/ImageOnly/Vortrag-Martin.tex
@@ -9,20 +9,6 @@
 \usepackage{tikz}
 \usepackage{incgraph}
 
-\newcommand {\framedgraphiconly}[1] {
-    \setbeamertemplate{navigation symbols}{}
-    \begin{frame}[plain]
-        \begin{center}
-            \includegraphics[width=\paperwidth,height=\paperheight,keepaspectratio]{#1}
-        \end{center}
-        %\begin{tikzpicture}[remember picture,overlay]
-            %\node[at=(current page.center)] {
-                %\includegraphics[width=\paperwidth,height=\paperheight,keepaspectratio]{#1}
-            %};
-        %\end{tikzpicture}
-    \end{frame}
-}
-
 \beamertemplatenavigationsymbolsempty
 
 % Begin:Move navigation from top to bottom
@@ -64,7 +50,6 @@
 
 \section{Examples}
 \subsection{Examples}
-%\framedgraphiconly{0099.jpg}
 
 \incgraph{0099.jpg}