diff --git a/ptbposter/ptbposter-test-hoch.pdf b/ptbposter/ptbposter-test-hoch.pdf
index f0d5137847900eb61028a1adf78639b88a4336a7..ca2b3a6d5b1fb778f35232874030caf0c2089fda 100644
Binary files a/ptbposter/ptbposter-test-hoch.pdf and b/ptbposter/ptbposter-test-hoch.pdf differ
diff --git a/ptbposter/ptbposter-test-quer.pdf b/ptbposter/ptbposter-test-quer.pdf
index 6812c38f5fb425a3a912f7636ee2f83d3cd3c6bf..2965929e655647cd254842b8006a25c5b2cc3d8a 100644
Binary files a/ptbposter/ptbposter-test-quer.pdf and b/ptbposter/ptbposter-test-quer.pdf differ
diff --git a/ptbposter/ptbposter-test-quer.tex b/ptbposter/ptbposter-test-quer.tex
index dbf64bbce054959190dfa8fdb23a3a6d6093e245..014826ae484c8321bc8aa9e9c78f6d76c12b58e5 100644
--- a/ptbposter/ptbposter-test-quer.tex
+++ b/ptbposter/ptbposter-test-quer.tex
@@ -19,6 +19,8 @@
 %%\scaleFontSizes{1.05}%     Werte nahe an "1" wählen!
 %%\scaleTitleFontSize{0.92}% Werte nahe an "1" wählen!
 
+\scaleFontSizes{0.97}
+
 \newcommand*\columnNumbers{3}
 
 \title{Die \LaTeX"=Dokumentenklasse "`ptbposter"'}
diff --git a/ptbposter/ptbposter.cls b/ptbposter/ptbposter.cls
index 58bd8bcef868f3f581dc467cb1dc8dd26dd43594..cec57c9b3f9a6a3398d1a78b0149d2ec9f805572 100644
--- a/ptbposter/ptbposter.cls
+++ b/ptbposter/ptbposter.cls
@@ -17,7 +17,7 @@
 \newdimen\PTB@textvsep       % Abstand Textbereich zum blauen Rahmen
 \newdimen\PTB@framewidth     % Breite des blauen Rahmens
 \newdimen\PTB@frameheight    % Höhe des blauen Rahmens
-\newdimen\PTB@scale@basis    % Bezugsgröße für papierabhängige Größenberechnung
+\newdimen\PTB@scale@base    % Bezugsgröße für papierabhängige Größenberechnung
 
 \newcommand*\authorFontSize{}
 \newcommand*\footFontSize{}
@@ -76,22 +76,21 @@
 \RequirePackage{geometry}% Papiergröße steht fest (Standard: A0)
 
 \ifdim\paperheight>\paperwidth
-  \setlength\PTB@scale@basis{\paperheight}
+  \setlength\PTB@scale@base{\paperheight}
   \PTB@is@landscapefalse
 \else
-  \setlength\PTB@scale@basis{\paperwidth}
+  \setlength\PTB@scale@base{\paperwidth}
   \PTB@is@landscapetrue
 \fi
 
-\setlength\PTB@default@fsize@base{0.0130170299199\PTB@scale@basis}%  11pt bei A4
-\setlength\PTB@default@afsize{0.0157550946737\PTB@scale@basis}% 53.3pt bei A0
-\setlength\PTB@default@tfsize{0.0315101893474\PTB@scale@basis}% 106.6pt bei A0
-\setlength\PTB@default@ffsize{0.00567538119577\PTB@scale@basis}% 19.2pt bei A0
-\setlength\PTB@topmargin{0.180824222418\PTB@scale@basis}% 612pt (215mm) bei A0
+\setlength\PTB@default@fsize@base{0.0130170299199\PTB@scale@base}%  11pt bei A4
+\setlength\PTB@default@afsize{0.0157550946737\PTB@scale@base}% 53.3pt bei A0
+\setlength\PTB@default@tfsize{0.0315101893474\PTB@scale@base}% 106.6pt bei A0
+\setlength\PTB@default@ffsize{0.00567538119577\PTB@scale@base}% 19.2pt bei A0
+\setlength\PTB@topmargin{0.180824222418\PTB@scale@base}% 612pt (215mm) bei A0
 
 \newcommand*\scaleFontSizes[1]{%
   \PTB@default@fsize=#1\PTB@default@fsize@base
-  %%%\changefontsizes{\PTB@default@fsize}% ???
 }
 
 \newcommand*\scaleTitleFontSize[1]{%
@@ -105,6 +104,11 @@
 \scaleFontSizes{1}% wird ggf. in Präambel noch mal angepasst
 \scaleTitleFontSize{1}% wird ggf. in Präambel noch mal angepasst
 
+\edef\authorFontSize{\noexpand\@setfontsize\noexpand\authorFontSize{%
+  \the\PTB@default@afsize}{\the\dimexpr1.2\PTB@default@afsize}}
+\edef\footFontSize{\noexpand\@setfontsize\noexpand\footFontSize{%
+  \the\PTB@default@ffsize}{\the\dimexpr1.2\PTB@default@ffsize}}
+
 \RequirePackage[svgnames]{xcolor}
 \RequirePackage[newcommands,newparameters]{ragged2e}% ???
 \RequirePackage{multicol,graphicx}
@@ -164,18 +168,18 @@
 \RequirePackage{qrcode}
 
 \AddToShipoutPictureBG*{% Kopf (relativ zur oberen Blattkante)
-  \PTB@tempdima=-0.08023549218\PTB@scale@basis
+  \PTB@tempdima=-0.08023549218\PTB@scale@base
   \put(\PTB@leftmargin,\PTB@tempdima){%
-    \includegraphics[width=.401\PTB@scale@basis]{ptbposter-logo.pdf}}%
-  \PTB@tempdima=-0.134566863195\PTB@scale@basis
+    \includegraphics[width=.401\PTB@scale@base]{ptbposter-logo.pdf}}%
+  \PTB@tempdima=-0.134566863195\PTB@scale@base
   \put(\PTB@leftmargin,\PTB@tempdima){\sffamily\titleFontSize\@title}%
-  \PTB@tempdima=-0.159798150044\PTB@scale@basis
+  \PTB@tempdima=-0.159798150044\PTB@scale@base
   \def\and{, }%
   \put(\PTB@leftmargin,\PTB@tempdima){\sffamily\authorFontSize\@author}%
   % hier wird \@thanks gefüllt
-  \PTB@tempdima=0.00168208578994\PTB@scale@basis
+  \PTB@tempdima=0.00168208578994\PTB@scale@base
   \linethickness{\PTB@tempdima}\color{PTBcolor}
-  \PTB@tempdima=-0.0883095039717\PTB@scale@basis
+  \PTB@tempdima=-0.0883095039717\PTB@scale@base
   \put(\PTB@leftmargin,\PTB@tempdima){%
     \line(1,0){\dimexpr\paperwidth-2\PTB@leftmargin}}%
   \put(\PTB@leftmargin,\dimexpr-\textheight-2\PTB@textvsep-\PTB@topmargin)%
@@ -186,12 +190,12 @@
 \AddToShipoutPictureBG*{% Fuß (relativ zur unteren Kante des Textbereichs)
   \AtTextLowerLeft{%
     \put(-\PTB@texthsep,-\PTB@textvsep){%
-      \PTB@tempdimb=0.000420521447484\PTB@scale@basis
+      \PTB@tempdimb=0.000420521447484\PTB@scale@base
       \linethickness{\PTB@tempdimb}\normalcolor
-      \PTB@tempdima=-0.0420521447484\PTB@scale@basis
+      \PTB@tempdima=-0.0420521447484\PTB@scale@base
       \put(-.5\@wholewidth,\PTB@tempdima){%
-        \PTB@tempdima=0.0386879731686\PTB@scale@basis
-        \PTB@tempdimb=0.00168208578994\PTB@scale@basis
+        \PTB@tempdima=0.0386879731686\PTB@scale@base
+        \PTB@tempdimb=0.00168208578994\PTB@scale@base
         \ifx\PTB@qrcode\@empty
           \color{PTBcolor}\framebox(\PTB@tempdima,\PTB@tempdima){}%
         \else
@@ -204,9 +208,9 @@
             {\dimexpr\PTB@tempdima+2\@wholewidth}}%
         \hspace{\PTB@tempdimb}\framebox(\PTB@tempdima,\PTB@tempdima){}%
       }
-      \PTB@tempdimb=-0.00841042894969\PTB@scale@basis
+      \PTB@tempdimb=-0.00841042894969\PTB@scale@base
       \footFontSize\sffamily\normalcolor
-      \PTB@tempdima=0.122792262665\PTB@scale@basis
+      \PTB@tempdima=0.122792262665\PTB@scale@base
       \put(\PTB@tempdima,\PTB@tempdimb){%
         \begin{tabular}[t]{@{}l@{}}
           Physikalisch-Technische Bundesanstalt \\
@@ -216,7 +220,7 @@
           \ifx\PTB@workingGroup\@empty\else \PTB@workingGroup\\\fi
         \end{tabular}%
       }
-      \PTB@tempdima=0.263246426125\PTB@scale@basis
+      \PTB@tempdima=0.263246426125\PTB@scale@base
       \put(\PTB@tempdima,\PTB@tempdimb){%
         \begin{tabular}[t]{@{}ll@{}}
           \ifx\PTB@street\@empty\else\multicolumn{2}{@{}l@{}}{\PTB@street}\\\fi
@@ -227,7 +231,7 @@
           \multicolumn{2}{@{}l@{}}{\href{http://www.ptb.de/}{www.ptb.de}}
         \end{tabular}%
       }
-      \PTB@tempdima=0.378469302736\PTB@scale@basis
+      \PTB@tempdima=0.378469302736\PTB@scale@base
       \put(\PTB@tempdima,\PTB@tempdimb){%
         \begin{tabular}[t]{@{}l@{}}
           \@thanks % wurde bei der Ausführung von \@author gefüllt.
@@ -332,27 +336,23 @@
   \changefontsizes{\the\PTB@default@fsize}%
   \setlength\PTB@texthsep{.5em}%
   \setlength\PTB@textvsep{.75em}%
-  \edef\authorFontSize{\noexpand\@setfontsize\noexpand\authorFontSize{%
-    \the\PTB@default@afsize}{\the\dimexpr1.2\PTB@default@afsize}}
-  \edef\footFontSize{\noexpand\@setfontsize\noexpand\footFontSize{%
-    \the\PTB@default@ffsize}{\the\dimexpr1.2\PTB@default@ffsize}}
   \ifPTB@is@landscape
-    \setlength\PTB@framewidth{0.950378471315\PTB@scale@basis}% 3215pt (1130mm) bei A0
-    \setlength\PTB@frameheight{0.462573592233\PTB@scale@basis}% 1565pt (550mm) bei A0
+    \setlength\PTB@framewidth{0.950378471315\PTB@scale@base}% 3215pt (1130mm) bei A0
+    \setlength\PTB@frameheight{0.462573592233\PTB@scale@base}% 1565pt (550mm) bei A0
   \else
-    \setlength\PTB@framewidth{0.656013458076\PTB@scale@basis}% 2219pt (780mm) bei A0
-    \setlength\PTB@frameheight{0.740117747573\PTB@scale@basis}% 2504pt (880mm) bei A0
+    \setlength\PTB@framewidth{0.656013458076\PTB@scale@base}% 2219pt (780mm) bei A0
+    \setlength\PTB@frameheight{0.740117747573\PTB@scale@base}% 2504pt (880mm) bei A0
   \fi
   \setlength\PTB@leftmargin{0.5\dimexpr\paperwidth-\PTB@framewidth}%
   \edef\PTB@tempa{\noexpand\newgeometry{%
       columnsep=2em,hcentering,%
       top=\the\dimexpr\PTB@topmargin+\PTB@textvsep,%
       textwidth=\the\dimexpr\PTB@framewidth-2\PTB@texthsep,%
-      textheight=\the\dimexpr\PTB@frameheight-2\PTB@texthsep
+      textheight=\the\dimexpr\PTB@frameheight-2\PTB@textvsep
     }%
   }%
-  \PTB@tempa
-  \normalsize \KOMAoptions{parskip=half}
+  \PTB@tempa\normalsize
+  \KOMAoptions{parskip=half}
   \setlength\leftmargini{1.5em}
   \setlength\leftmarginii{1.4em}
   \setlength\leftmarginiii{1.3em}