diff --git a/ptbposter/Makefile b/ptbposter/Makefile
index b2a389d6a9d73976378086b5313634bb0963974d..7e9816fc1a0132fdfe98ee2fbc073068710c4c79 100644
--- a/ptbposter/Makefile
+++ b/ptbposter/Makefile
@@ -8,7 +8,7 @@ DOC2 = ptbposter-test-quer
 
 ARCHNAME = ptbposter-$(shell date +%Y-%m-%d).zip
 
-ADDINPUTS = ptbposter-inc.tex ptbposter.cls ptbposter-logo.pdf
+ADDINPUTS = ptbposter-inc.tex ptbposter.cls ptbposter-logo.pdf ptbposter-size.clo
 
 all : ptbposter-test-hoch.pdf ptbposter-test-quer.pdf
 
diff --git a/ptbposter/ptbposter-size.clo b/ptbposter/ptbposter-size.clo
new file mode 100644
index 0000000000000000000000000000000000000000..4953e8fa9d6331f8da970a1efc64febe008ac644
--- /dev/null
+++ b/ptbposter/ptbposter-size.clo
@@ -0,0 +1,97 @@
+
+\ProvidesFile{ptbposter-size.clo}[2015/03/23 v0.1a PTB-Poster (size)]
+\def\normalsize{%
+  \PTB@tempdima=\PTB@default@fsize % 11pt
+  \@setfontsize\normalsize\PTB@tempdima{1.236\PTB@tempdima}%
+  \abovedisplayskip \PTB@tempdima \@plus 0.2727\PTB@tempdima \@minus 0.5454\PTB@tempdima
+  \abovedisplayshortskip \z@ \@plus 0.2727\PTB@tempdima
+  \belowdisplayshortskip 0.591\PTB@tempdima \@plus 0.3182\PTB@tempdima \@minus 0.2727\PTB@tempdima
+  \belowdisplayskip \abovedisplayskip
+  \let\@listi\@listI
+}
+\def\small{%
+  \PTB@tempdima=0.9091\PTB@default@fsize % 10pt
+  \@setfontsize\small\PTB@tempdima{1.2\PTB@tempdima}%
+  \abovedisplayskip \PTB@default@fsize \@plus 0.2\PTB@tempdima \@minus 0.5\PTB@tempdima
+  \abovedisplayshortskip \z@ \@plus 0.3\PTB@tempdima
+  \belowdisplayshortskip 0.6\PTB@tempdima \@plus 0.3\PTB@tempdima \@plus 0.3\PTB@tempdima
+  \def\@listi{\leftmargin\leftmargini
+    \topsep 0.6\PTB@tempdima \@plus 0.2\PTB@tempdima \@minus 0.2\PTB@tempdima
+    \parsep 0.3\PTB@tempdima \@plus 0.2\PTB@tempdima \@minus 0.1\PTB@tempdima
+    \itemsep \parsep}%
+  \belowdisplayskip \abovedisplayskip
+}
+\def\footnotesize{%
+  \PTB@tempdima=0.8182\PTB@default@fsize % 9pt
+  \@setfontsize\footnotesize\PTB@tempdima{1.222\PTB@tempdima}%
+  \abovedisplayskip 0.8889\PTB@tempdima \@plus 0.2222\PTB@tempdima \@minus 0.4444\PTB@tempdima
+  \abovedisplayshortskip \z@ \@plus 0.1111\PTB@tempdima
+  \belowdisplayshortskip 0.4444\PTB@tempdima \@plus 0.2222\PTB@tempdima \@minus 0.2222\PTB@tempdima
+  \def\@listi{\leftmargin\leftmargini
+    \topsep 0.4444\PTB@tempdima \@plus 0.2222\PTB@tempdima \@minus 0.2222\PTB@tempdima
+    \parsep 0.2222\PTB@tempdima \@plus 0.1111\PTB@tempdima \@minus 0.1111\PTB@tempdima
+    \itemsep \parsep}%
+  \belowdisplayskip \abovedisplayskip
+}
+\def\scriptsize{\@setfontsize\scriptsize{0.7272\PTB@default@fsize}{0.86355\PTB@default@fsize}}% 8pt
+\def\tiny{\@setfontsize\tiny{0.5454\PTB@default@fsize}{0.6363\PTB@default@fsize}}% 6pt
+\def\large{\@setfontsize\large{1.0909\PTB@default@fsize}{1.2727\PTB@default@fsize}}% 12pt
+\def\Large{\@setfontsize\Large{1.2727\PTB@default@fsize}{1.6363\PTB@default@fsize}}% 14pt
+\def\LARGE{\@setfontsize\LARGE{1.5454\PTB@default@fsize}{2\PTB@default@fsize}}% 17pt
+\def\huge{\@setfontsize\huge{1.8182\PTB@default@fsize}{2.2727\PTB@default@fsize}}% 20pt
+\def\Huge{\@setfontsize\Huge{2.2727\PTB@default@fsize}{2.7272\PTB@default@fsize}}% 25pt
+\normalsize
+\setlength\footnotesep    {0.7\PTB@default@fsize}
+\setlength{\skip\footins} {0.9091\PTB@default@fsize \@plus 0.3636\PTB@default@fsize \@minus 0.1818\PTB@default@fsize}
+\setlength\floatsep       {1.0909\PTB@default@fsize \@plus 0.1818\PTB@default@fsize \@minus 0.1818\PTB@default@fsize}
+\setlength\textfloatsep   {1.1818\PTB@default@fsize \@plus 0.1818\PTB@default@fsize \@minus 0.3636\PTB@default@fsize}
+\setlength\intextsep      {1.0909\PTB@default@fsize \@plus 0.1818\PTB@default@fsize \@minus 0.1818\PTB@default@fsize}
+\setlength\dblfloatsep    {1.0909\PTB@default@fsize \@plus 0.1818\PTB@default@fsize \@minus 0.1818\PTB@default@fsize}
+\setlength\dbltextfloatsep{1.1818\PTB@default@fsize \@plus 0.1818\PTB@default@fsize \@minus 0.3636\PTB@default@fsize}
+\setlength\@fptop         {0\PTB@default@fsize \@plus 1fil}
+\setlength\@fpsep         {0.7272\PTB@default@fsize \@plus 2fil}
+\setlength\@fpbot         {0\PTB@default@fsize \@plus 1fil}
+\setlength\@dblfptop      {0\PTB@default@fsize \@plus 1fil}
+\setlength\@dblfpsep      {0.7272\PTB@default@fsize \@plus 2fil}
+\setlength\@dblfpbot      {0\PTB@default@fsize \@plus 1fil}
+\setlength\partopsep      {0.2727\PTB@default@fsize \@plus 0.0909\PTB@default@fsize \@minus 0.0909\PTB@default@fsize}
+\def\@listi{\leftmargin\leftmargini
+            \parsep 0.4091\PTB@default@fsize \@plus 0.1818\PTB@default@fsize \@minus 0.9091\PTB@default@fsize
+            \topsep 0.8182\PTB@default@fsize \@plus 0.2727\PTB@default@fsize \@minus 0.4545\PTB@default@fsize
+            \itemsep0.4091\PTB@default@fsize \@plus 0.1818\PTB@default@fsize \@minus 0.9091\PTB@default@fsize}
+\let\@listI\@listi
+\def\@listii {\leftmargin\leftmarginii
+              \labelwidth\leftmarginii
+              \advance\labelwidth-\labelsep
+              \topsep    0.4091\PTB@default@fsize \@plus 0.1818\PTB@default@fsize \@minus 0.0909\PTB@default@fsize
+              \parsep    0.1818\PTB@default@fsize   \@plus 0.0909\PTB@default@fsize  \@minus 0.0909\PTB@default@fsize
+              \itemsep   \parsep}
+\def\@listiii{\leftmargin\leftmarginiii
+              \labelwidth\leftmarginiii
+              \advance\labelwidth-\labelsep
+              \topsep    0.1818\PTB@default@fsize \@plus 0.0909\PTB@default@fsize \@minus 0.0909\PTB@default@fsize
+              \parsep    \z@
+              \partopsep 0.0909\PTB@default@fsize \@plus\z@ \@minus 0.0909\PTB@default@fsize
+              \itemsep   \topsep}
+\def\@listiv {\leftmargin\leftmarginiv
+              \labelwidth\leftmarginiv
+              \advance\labelwidth-\labelsep}
+\def\@listv  {\leftmargin\leftmarginv
+              \labelwidth\leftmarginv
+              \advance\labelwidth-\labelsep}
+\def\@listvi {\leftmargin\leftmarginvi
+              \labelwidth\leftmarginvi
+              \advance\labelwidth-\labelsep}
+%%% From File: $Id: scrkernel-paragraphs.dtx 1824 2014-11-14 08:02:28Z kohm $
+\@ifundefined{@list@extra}{}{%
+  \l@addto@macro{\@listi}{\@list@extra}%
+  \let\@listI=\@listi
+  \l@addto@macro{\@listii}{\@list@extra}%
+  \l@addto@macro{\@listiii}{\@list@extra}%
+  \l@addto@macro{\footnotesize}{\protect\add@extra@listi{ftns}}%
+  \l@addto@macro{\small}{\protect\add@extra@listi{sml}}%
+}
+\@listi
+\endinput
+%%
+%% End of file `ptbposter-size.clo'.