diff --git a/README.md b/README.md
index d5b9060..3c5d3c7 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,21 @@ A beamer theme that conforms to the corporate design of the University of Leipzi
 
 
 Originally created by Lukas Gienapp at https://github.com/lgienapp/leipzig-theme
+
+## Documentation
+* read `example.pdf` and its source `example.tex`
+
+
+## Installation
+* sorry, no install script
+* download the repository (small downward arrow in the upper right corner of the file table above)
+* quick&dirty: copy the files `beamerthemeleipzig.sty`, `logo.pdf` and `ul-wordmark.pdf` into your working directory
+
+
+
+## Changes
+* forked from Lukas
+* font and font handling changed for `pdflatex` compatibility
+* `ul-wordmark` added
+* small changes in documentatio/example tex file
+
diff --git a/main.pdf b/example.pdf
similarity index 60%
rename from main.pdf
rename to example.pdf
index d474a8f..e74ec05 100644
Binary files a/main.pdf and b/example.pdf differ
diff --git a/tst.tex b/example.tex
similarity index 93%
rename from tst.tex
rename to example.tex
index a8d4db0..ff32294 100644
--- a/tst.tex
+++ b/example.tex
@@ -1,14 +1,15 @@
-\documentclass[serifmath,aspectratio=169]{beamer}
+\documentclass[aspectratio=169]{beamer}
+%\documentclass[aspectratio=169,serifmath]{beamer}
 
 \usetheme{leipzig}
 
 \usepackage{booktabs}
 
-\newcommand{\themename}{\textbf{leipzig}~}
+
 
 \title[Leipzig]{Leipzig}
 \subtitle[Beamer Theme]{Beamer theme}
-\author{Author}
+\author{Author A}
 \institute{Institute of Mathematics}
 \date{\today}
 \titlegraphic{}
@@ -31,7 +32,7 @@
 \section{Introduction}
 
 \begin{frame}[fragile]{Leipzig}
-The \themename theme is a Beamer theme that complies with the corporate design of the Leipzig University.
+The \textbf{Leipzig} theme is a Beamer theme that complies with the corporate design of the Leipzig University.
 
 Enable the theme by loading
 \begin{verbatim}
@@ -199,7 +200,7 @@ You can \emph{emphasize} text, \alert{accent} parts or show \textbf{bold} result
 
 \begin{frame}{Math}
   \begin{equation*}
-    \frac{1}{\sigma\sqrt{2\pi}}\exp\biggl(\frac{-x^2}{2\sigma^2}\biggr)
+  f(x) =   \frac{1}{\sigma\sqrt{2\pi}}\exp\biggl(-\frac{x^2}{2\sigma^2}\biggr)
   \end{equation*}
 \end{frame}
 
@@ -212,6 +213,7 @@ To split your bibliography into multiple frames, use the \verb+[allowframebreaks
 
 \section{References}
 \begin{frame}[allowframebreaks]
+  \small
     \bibliographystyle{plain}
 	\bibliography{bibliography.bib}
 \end{frame}
@@ -220,7 +222,7 @@ To split your bibliography into multiple frames, use the \verb+[allowframebreaks
 \begin{frame}{Appendix}
     Things that differ in the \LaTeX~ version compared to the original \texttt{.pptx} style:
         \begin{itemize}
-            \item the footer does not include the university wordmark, as a vector-based graphic file of such is not obtainable from the university
+            \item we use the free FiraSans font as a nice, modern, screen optimized, sans~serif~font
             \item the frame titles are not converted to uppercase, as this introduces a bug with the \texttt{[allowframebreaks]} option
         \end{itemize}
 \end{frame}
diff --git a/leipzig_theme.pdf b/leipzig_theme.pdf
deleted file mode 100644
index 0689860..0000000
Binary files a/leipzig_theme.pdf and /dev/null differ
diff --git a/main.tex b/main.tex
deleted file mode 100644
index aee6e6b..0000000
--- a/main.tex
+++ /dev/null
@@ -1,229 +0,0 @@
-\documentclass[noserifmath,aspectratio=169]{beamer}
-
-\usetheme{leipzig}
-
-\usepackage{booktabs}
-
-\newcommand{\themename}{\textbf{leipzig}~}
-
-\title[Leipzig]{Leipzig}
-\subtitle[Beamer Theme]{Beamer theme}
-\author{Author}
-\institute{Institute}
-\date{\today}
-\titlegraphic{}
-\location{Leipzig}
-\thankstitle{Thank You!}
-\address{Beethovenstraße 15, 04107 Leipzig}
-\email{example@uni-leipzig.de}
-\phone{+49 1234 5678910}
-%\website{}
-
-\begin{document}
-
-\maketitle
-
-\begin{frame}{Table of contents}
-  \setbeamertemplate{section in toc}[sections numbered]
-  \tableofcontents[hideallsubsections]
-\end{frame}
-
-\section{Introduction}
-
-\begin{frame}[fragile]{Leipzig}
-The \themename theme is a Beamer theme that complies with the corporate design of the Leipzig University.
-
-Enable the theme by loading
-\begin{verbatim}
-    \documentclass{beamer}
-    \usetheme{leipzig}
-\end{verbatim}
-
-Note that this package only works with XeTeX/XeLaTeX, as it depends on \texttt{fontspec}.
-\end{frame}
-
-\section{Elements}
-\begin{frame}[fragile]{Package Options}
-\begin{description}
-\item[\texttt{noserifmath}] displays math using Arial
-\item[\texttt{nosectionpages}] hides section pages.
-\item[\texttt{aspectratio=169}] to enable 16:9 aspect ratio (default is 4:3)
-\end{description}
-\end{frame}
-
-\begin{frame}[fragile]{Title Page Macros}
-The usual title page macros such as author, date, title and subtitle are supported.
-Additional options include:
-\begin{itemize}
-\item short title for use in the header: \verb+\title[short title]{long title}+ (analogous for subtitle)
-\item institution for use in the footer: \\ \verb+\institute{institution}+
-\item additional graphics on the title page: \\ \verb+\titlegraphic{filename}+
-\item location of the talk: \verb+\location{location}+
-\end{itemize}
-\end{frame}
-
-
-\begin{frame}[fragile]{Thanks Page Macros}
-A ``Thank You!''-Page can be displayed using \verb+\makethanks+. The displayed information can be specified using:
-\begin{itemize}
-\item \verb+\thankstitle{}+ for a customized thank-you text, default is ``Vielen Dank''
-\item \verb+\address{}+ 
-\item \verb+\email{}+
-\item \verb+\phone{}+
-\item \verb+\website{}+ - default is \texttt{www.uni-leipzig.de}, leave empty to disable
-\end{itemize}
-\end{frame}
-
-\begin{frame}[fragile]{Typography}
-\begin{verbatim}
-You can \emph{emphasize} text, \alert{accent} 
-parts or show \textbf{bold} results.
-\end{verbatim}
-\begin{center}becomes\end{center}
-You can \emph{emphasize} text, \alert{accent} parts or show \textbf{bold} results.\footnote{Footnotes work as well.}
-\end{frame}
-
-\begin{frame}{Font features}
-  \begin{itemize}
-    \item Regular
-    \item \textit{Italic}
-    \item \textbf{Bold}
-    \item \textbf{\textit{Bold Italic}}
-    \item \texttt{Monospace}
-    \item \texttt{\textit{Monospace Italic}}
-    \item \texttt{\textbf{Monospace Bold}}
-    \item \texttt{\textbf{\textit{Monospace Bold Italic}}}
-  \end{itemize}
-\end{frame}
-
-\begin{frame}{Lists}
-  \begin{columns}[T,onlytextwidth]
-    \column{0.33\textwidth}
-      Items
-      \begin{itemize}
-        \item Item \item Item \item Item
-      \end{itemize}
-
-    \column{0.33\textwidth}
-      Enumerations
-      \begin{enumerate}
-        \item First \item Second  \item Last
-      \end{enumerate}
-
-    \column{0.33\textwidth}
-      Descriptions
-      \begin{description}
-        \item[Caption] Text 
-        \item[Caption] Text
-        \item[Caption] Text
-      \end{description}
-  \end{columns}
-\end{frame}
-
-\begin{frame}{Figures}
-  \begin{figure}
-    \begin{tikzpicture}[scale=1]
-    \colorlet{col1}{alerted text.fg!80}
-    \colorlet{col2}{alerted text.fg!60}
-    \colorlet{col3}{alerted text.fg!40}
-    \colorlet{col4}{alerted text.fg!20}
-   	\draw [help lines] (-4.25,-1.25) grid (4.25,1.5);
-   	\draw [help lines,step=0.25cm] (-2.99,0) grid (2.99,0.99);
-
-   \begin{scope}[smooth,draw=gray!20,y=0.3989422804cm]
-        \filldraw [fill=col3] plot[id=f1,domain=-3:-2] function {exp(-x*x/2)}
-            -- (-2,0) -- (-3,0) -- cycle;
-        \filldraw [fill=col2] plot[id=f2,domain=-2:-1] function {exp(-x*x/2)}
-            -- (-1,0) -- (-2,0) -- cycle;
-        \filldraw [fill=col1] plot[id=f3,domain=-1:0]  function {exp(-x*x/2)}
-            -- (0,0)  -- (-1,0) -- cycle;
-        \filldraw [fill=col1] plot[id=f4,domain=0:1] function {exp(-x*x/2)}
-            -- (1,0)  --  (0,0) -- cycle;
-        \filldraw [fill=col2] plot[id=f5,domain=1:2] function {exp(-x*x/2)}
-            -- (2,0)  -- (1,0) -- cycle;
-        \filldraw [fill=col3] plot[id=f6,domain=2:3] function {exp(-x*x/2)}
-            -- (3,0)  -- (2,0) -- cycle;
-        \draw[black] plot[id=f7,domain=-4.25:4.25,samples=100]
-            function {exp(-x*x/2)};
-   \end{scope}
-       \draw[->] (-4.25,0) -- (4.25,0) node [right] {$x$};
-
-    \foreach \pos/\label in {-3/$-3\sigma$,-2/$-2\sigma$,-1/$-\sigma$,
-            1/$\sigma$,2/$2\sigma$,3/$3\sigma$}
-        \draw (\pos,0) -- (\pos,-0.1) (\pos cm,-3ex) node
-            [anchor=base,fill=white,inner sep=1pt]  {\label};
-
-    \draw (-0.1,1) -- (.1,1) node [right,fill=white,inner sep=1pt] {$\sigma$};
-
-    \foreach \pos/\percent/\height in {1/34/0.5,2/14/0.25,3/2/0.125,4/0.1/0.1}
-    {
-      \node[text=col\pos,anchor=base,yshift=2pt,xshift=-0.625cm,
-        inner sep=1pt] at (\pos,\height) {$\percent\%$};
-      \node[text=col\pos,anchor=base,yshift=2pt,xshift=.625cm,
-        inner sep=1pt]  at (-\pos,\height) {$\percent\%$};
-    }
-\end{tikzpicture}
-    \caption{Standard deviation from \href{http://texample.net/tikz/examples/standard-deviation/}{texample.net}.}
-  \end{figure}
-\end{frame}
-
-\begin{frame}{Tables}
-  \begin{table}
-    \caption{Largest cities in the world (source: Wikipedia)}
-    \begin{tabular}{@{} lr @{}}
-      \toprule
-      City & Population\\
-      \midrule
-      Mexico City & 20,116,842\\
-      Shanghai & 19,210,000\\
-      Peking & 15,796,450\\
-      Istanbul & 14,160,467\\
-      \bottomrule
-    \end{tabular}
-  \end{table}
-\end{frame}
-
-\begin{frame}{Blocks}
-  	Three different block environments are pre-defined.
-    \begin{block}{Default}
-        Block content.
-    \end{block}
-
-      \begin{alertblock}{Alert}
-        Block content.
-      \end{alertblock}
-
-      \begin{exampleblock}{Example}
-        Block content.
-      \end{exampleblock}
-\end{frame}
-
-\begin{frame}{Math}
-  \begin{equation*}
-    \frac{1}{\sigma\sqrt{2\pi}}\exp\biggl(\frac{-x^2}{2\sigma^2}\biggr)
-  \end{equation*}
-\end{frame}
-
-\begin{frame}[fragile]{Citations}
-For a general introduction to creating slides with Beamer, refer to the Beamer manual.\cite{BeamerManual}
-To split your bibliography into multiple frames, use the \verb+[allowframebreaks]+ option.
-\end{frame}
-
-\makethanks
-
-\section{References}
-\begin{frame}[allowframebreaks]
-    \bibliographystyle{plain}
-	\bibliography{bibliography.bib}
-\end{frame}
-
-\section{Appendix}
-\begin{frame}{Appendix}
-    Things that differ in the \LaTeX~ version compared to the original \texttt{.pptx} style:
-        \begin{itemize}
-            \item the footer does not include the university wordmark, as a vector-based graphic file of such is not obtainable from the university
-            \item the frame titles are not converted to uppercase, as this introduces a bug with the \texttt{[allowframebreaks]} option
-        \end{itemize}
-\end{frame}
-
-\end{document}