diff --git a/ptbposter/penguin.pdf b/ptbposter/penguin.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..43eba9bc9bf46b7ac9e887421e6a4f0e62c518d5
Binary files /dev/null and b/ptbposter/penguin.pdf differ
diff --git a/ptbposter/ptbposter-doc-1.pdf b/ptbposter/ptbposter-doc-1.pdf
index 5216f5d683e94311b002f3ec84aa60505a62e33d..dd900e472e9018311f79f7e298ed992b2e87378f 100644
Binary files a/ptbposter/ptbposter-doc-1.pdf and b/ptbposter/ptbposter-doc-1.pdf differ
diff --git a/ptbposter/ptbposter-doc-1.tex b/ptbposter/ptbposter-doc-1.tex
index e5206754b7a1805c771c4a3dcb0dac37cd911217..36ebb778c8631344176ed60269c38148f8d7fc7b 100644
--- a/ptbposter/ptbposter-doc-1.tex
+++ b/ptbposter/ptbposter-doc-1.tex
@@ -16,6 +16,8 @@
 \Author{Ellen}{Bogen}[Muster Universität Oberstadt]
 \Author*{Peter}{Silie}[XYZ GmbH]
 
+\logo{penguin.pdf}
+
 %%\scaleFontSizes{1.05}%     Werte nahe an "1" wählen!
 %%\scaletoPaper{a4}
 
diff --git a/ptbposter/ptbposter-doc-2.pdf b/ptbposter/ptbposter-doc-2.pdf
index dcb386fa97ad4f0d3af935fee94bf325503307dc..c5e8b37dfcaacba4e104faef7ca7612d88cac5f3 100644
Binary files a/ptbposter/ptbposter-doc-2.pdf and b/ptbposter/ptbposter-doc-2.pdf differ
diff --git a/ptbposter/ptbposter-doc-2.tex b/ptbposter/ptbposter-doc-2.tex
index 6a91d2f77746bf94f284d65da9c6c64e0a49f1ad..e020ec9cdaf09c0cbb87b2ee240d8e44306ff051 100644
--- a/ptbposter/ptbposter-doc-2.tex
+++ b/ptbposter/ptbposter-doc-2.tex
@@ -16,6 +16,8 @@
 \Author{Ellen}{Bogen}[Muster Universität Oberstadt]
 \Author*{Peter}{Silie}[XYZ GmbH]
 
+\logo{penguin.pdf}
+
 %%\scaleFontSizes{1.05}%     Werte nahe an "1" wählen!
 %%\scaletoPaper{a4}
 
diff --git a/ptbposter/ptbposter.cls b/ptbposter/ptbposter.cls
index efe31caa562c9cf5e6c4172fcba0c666e2229727..1a3cf89f933f3dcb834b0cc0cc7cb0807ee80153 100644
--- a/ptbposter/ptbposter.cls
+++ b/ptbposter/ptbposter.cls
@@ -252,7 +252,7 @@
     \parbox[b]{\PTB@framewidth}{% TODO: vereinfachen?
       \parbox[b]{.401\PTB@scale@base}{%
         \textcolor{PTBcolor}{% TODO: Tikz-Grafik erzeugen (autom.?) und verwenden
-          \includegraphics[height=.08678\textwidth]{ptbposter-logo-A.mps}
+          \includegraphics[height=.055\PTB@scale@base]{ptbposter-logo-A.mps}
         }%    1,58365758755
         \hfill
         \raisebox{.0025\PTB@scale@base}{% 
@@ -271,7 +271,7 @@
       }%
       \hfill
       \ifx\PTB@logo\@empty\else
-        \includegraphics[height=.08678\textwidth]{\PTB@logo}%
+        \includegraphics[height=.055\PTB@scale@base]{\PTB@logo}%
       \fi
     }
   }%