diff --git a/ptbletter/ptbletter-doc.pdf b/ptbletter/ptbletter-doc.pdf
index 44b886c185fc8ead025800b6c954e71c9981ce27..3f014999de2f88d19953a031de9bb093f0c35d35 100644
Binary files a/ptbletter/ptbletter-doc.pdf and b/ptbletter/ptbletter-doc.pdf differ
diff --git a/ptbletter/ptbletter-doc.tex b/ptbletter/ptbletter-doc.tex
index 45c898f60c85b58718c3fec37a9558e41c3a0201..fa8c3495c98314262c4aa20180899a1d00ba9557 100644
--- a/ptbletter/ptbletter-doc.tex
+++ b/ptbletter/ptbletter-doc.tex
@@ -21,9 +21,7 @@
 % Ausblenden des Fußbereiches
 % \setkomavar{firstfoot}{}
 
-\subject{Die \LaTeX-Dokumentenklasse "`ptbletter"'}
-
-\date{2015-05-21}
+\date{2017-01-17}
 
 \begin{document}
 
@@ -33,6 +31,8 @@ Dorfstraße 1\\
 12345 Musterhausen
 }
 
+\subject{Die \LaTeX-Dokumentenklasse "`ptbletter"'}
+
 \opening{Sehr geehrte Frau Bogen,}
 
 die neue \LaTeX-Dokumentenklasse "`ptbletter"' ist fertig. Mit ihr können
diff --git a/ptbletter/ptbletter.cls b/ptbletter/ptbletter.cls
index e48754c9b43b61636b3f6eab680ec109390ed37e..ca03f06f6955a52b4e1f3f657c454adbd7b31096 100644
--- a/ptbletter/ptbletter.cls
+++ b/ptbletter/ptbletter.cls
@@ -12,6 +12,18 @@
 \let\ptb@tempdime=\@clnht
 \let\ptb@tempdimf=\@dashdim
 
+\newif\ifPTB@useCMYK \PTB@useCMYKfalse % vorerst
+
+\RequirePackage{xcolor}
+
+\ifPTB@useCMYK
+  \definecolor{PTBcolor}{cmyk}{1,0.32549,0.12549,0.12549}
+% icc:model: Europe ISO Coated FOGRA27
+\else
+%%%\definecolor{PTBcolor}{rgb}{0,0.67451,0.87451}
+  \definecolor{PTBcolor}{HTML}{00ACDF}
+\fi
+
 \newif\ifptb@BLN \ptb@BLNtrue
 \newif\ifptb@serif \ptb@seriftrue
 
@@ -71,7 +83,7 @@
 \HyphSubstIfExists{german-x-latest}{%
   \HyphSubstLet{german}{german-x-latest}}{}
 
-\RequirePackage{ifxetex,ifluatex,url,array,tabularx}
+\RequirePackage{ifxetex,ifluatex,url,array,tabularx,picture}
 \newif\ifXeOrLua \XeOrLuafalse
 \ifxetex\XeOrLuatrue\else\ifluatex\XeOrLuatrue\fi\fi
 
@@ -154,6 +166,16 @@
 \setkomavar{firsthead}{%
   \ifcase\ptb@head
   \or% 1
+    \begin{picture}(0,30bp )
+      \unitlength=1bp % ???
+      \put(0,0) {%
+        \includegraphics[width=308bp]{PTB-logo-2015.pdf}%
+      }
+      \put(0,-5bp) {%
+        \linethickness{1bp}%
+        \textcolor{PTBcolor}{\line(1,0){\linewidth}}%
+      }
+    \end{picture}
   \or% 2
     \begin{minipage}[b]{\linewidth}%
       \sffamily\bfseries\huge%