diff --git a/ptbposter/Makefile b/ptbposter/Makefile
index 1c2a2a6cb5c6656859b0c056e33ed2da7d1bd56e..3535f19586cd5dab203d6f5e3e4872d84a193519 100644
--- a/ptbposter/Makefile
+++ b/ptbposter/Makefile
@@ -1,5 +1,5 @@
 
-# Rolf Niepraschk, 2015/03/27, Rolf.Niepraschk@ptb.de
+# Rolf Niepraschk, 2015/09/27, Rolf.Niepraschk@ptb.de
 
 .SUFFIXES : .tex .ltx .dvi .ps .pdf .eps
 
@@ -8,7 +8,7 @@ DOC2 = ptbposter-doc-2
 
 ARCHNAME = ptbposter-$(shell date +%Y-%m-%d).zip
 
-ADDINPUTS = ptbposter.cls ptbposter-logo-A.pdf ptbposter-logo-B.pdf
+ADDINPUTS = ptbposter.cls ptbposter-logo-A.mps ptbposter-logo-B.mps
 
 all : $(DOC1).pdf $(DOC2).pdf
 
diff --git a/ptbposter/ptbposter-doc-1.pdf b/ptbposter/ptbposter-doc-1.pdf
index 570393ce53ba8323030e9e9e66dbb28b13c81807..dc3c83aae4969e19b348b5eabb91c9a1307c442c 100644
Binary files a/ptbposter/ptbposter-doc-1.pdf and b/ptbposter/ptbposter-doc-1.pdf differ
diff --git a/ptbposter/ptbposter-doc-2.pdf b/ptbposter/ptbposter-doc-2.pdf
index 345c5af3ae4c8ca97a344bab6becf8705b198fd4..f3360055ca05d9b1967ce2101b20cc6ebcc02d20 100644
Binary files a/ptbposter/ptbposter-doc-2.pdf and b/ptbposter/ptbposter-doc-2.pdf differ
diff --git a/ptbposter/ptbposter.cls b/ptbposter/ptbposter.cls
index ca58ade1df091b07555cebb0bc795a46a2b1fe06..e9c1e5707e5aeef4324c4fb69e6f0d437569e81d 100644
--- a/ptbposter/ptbposter.cls
+++ b/ptbposter/ptbposter.cls
@@ -4,7 +4,9 @@
 
 \NeedsTeXFormat{LaTeX2e}[1999/12/01]
 \ProvidesClass{ptbposter}
-    [2016/09/26 v0.4b PTB-Poster-Klasse (RN)]
+    [2016/09/28 v0.4b PTB-Poster-Klasse (RN)]
+    
+\newif\ifPTB@useCMYK \PTB@useCMYKfalse % vorerst
 
 \newdimen\PTB@topmargin      % Abstand zum Rahmen
 \newdimen\PTB@leftmargin     % Abstand zum Rahmen
@@ -216,12 +218,15 @@
 \newcommand*\PTB@fax{}
 \newcommand*\fax[1]{\gdef\PTB@fax{#1}}
 \newcommand*\PTB@final@paper{}
-\newcommand*\scaletoPaper[1]{\gdef\PTB@final@paper{#1}}
+\newcommand*\scaletoPaper[1]{\gdef\PTB@final@paper{#1}} 
 
-%%%\definecolor{PTBcolor}{rgb}{0,0.67451,0.87451}
-%%%\definecolor{PTBcolor}{HTML}{00ACDF} 
-\definecolor{PTBcolor}{cmyk}{1,0.32549,0.12549,0.12549}
+\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
 
 \RequirePackage[texcoord]{eso-pic}
 \RequirePackage{pict2e,picture,ifdraft,booktabs}
@@ -231,10 +236,10 @@
   \PTB@tempdima=-0.077\PTB@scale@base
   \put(\PTB@leftmargin,\PTB@tempdima){%
     \parbox[b]{.401\PTB@scale@base}{%
-      \textcolor{PTBcolor}{%
+      \textcolor{PTBcolor}{% TODO: Tikz-Grafik erzeugen (autom.?) und verwenden
         \includegraphics[width=.379\linewidth]{ptbposter-logo-A.mps}}%
       \hfill
-      \raisebox{-.01\height}{%
+      \raisebox{-.01\height}{% TODO: Text (Arial?) verwenden
         \includegraphics[width=.612\linewidth]{ptbposter-logo-B.mps}}%
     }%
   }%