diff --git a/gefahrgutformular/gefahrgutformular.cls b/gefahrgutformular/gefahrgutformular.cls
index e074d6cb1ca7af8cb6a8574c5654d3f8061ef258..52eaf7864029a2327558fcd93eb5d7d2262fa870 100644
--- a/gefahrgutformular/gefahrgutformular.cls
+++ b/gefahrgutformular/gefahrgutformular.cls
@@ -30,9 +30,9 @@
 
 \newcommand*\vl@doc@style@code{616~00~h}
 
-\RequirePackage{graphicx,eso-pic,pict2e,picture,xcolor,trimspaces}
+\RequirePackage{graphicx,pict2e,picture,eso-pic}
 \RequirePackage[ngerman]{babel}
-\RequirePackage{siunitx-PTB,luaimageembed}
+\RequirePackage{siunitx-PTB}
 
 \let\vl@tempdima=\@ovxx
 \let\vl@tempdimb=\@ovyy
@@ -168,6 +168,8 @@
       \put(\vl@tempdimc,-17bp){\makebox(0,0)[c]{%
         \ifx\vl@SignatureGraphic\@empty
           \ifx\vl@SignatureGraphicBaseLXIV\@empty\else
+            % https://github.com/csachs/luaimageembed
+            \RequirePackage{luaimageembed}%
             \includegraphicsembedded[height=26bp]{\vl@SignatureGraphicBaseLXIV}%
           \fi
         \else
diff --git a/gefahrgutformular/test-gefahrgutformular.pdf b/gefahrgutformular/test-gefahrgutformular.pdf
index 8de4bcdb59179adbf03f907978d60fc38208a57f..2d9c39599aaa58629674e91b0f1740ee8caf8cdd 100644
Binary files a/gefahrgutformular/test-gefahrgutformular.pdf and b/gefahrgutformular/test-gefahrgutformular.pdf differ
diff --git a/gefahrgutformular/test-gefahrgutformular.tex b/gefahrgutformular/test-gefahrgutformular.tex
index 9d1bd37541c4999f074f312c2ca8494caeb69157..4a82df78556f639ce93a3996a44f3a2061e09eea 100644
--- a/gefahrgutformular/test-gefahrgutformular.tex
+++ b/gefahrgutformular/test-gefahrgutformular.tex
@@ -25,7 +25,7 @@ Pfeiffer-vacuum SAS\\
   \item 6 Lecks; Druck \SI{1.5}{\bar}; UN 1046; Helium \dots
   \item 2 Lecks; Druck \SI{1.5}{\bar}; UN 1046; Wasserstoff \dots 
 }
-%\SignatureGraphic{SIG_Ute_Becker.png}
+\SignatureGraphic{SIG_Ute_Becker.png}
 \SignatureGraphicBaseLXIV{%
 iVBORw0KGgoAAAANSUhEUgAABdoAAAGgCAYAAAC9hNWKAAAWGXpUWHRSYXcgcHJvZmlsZSB0eXBl
 IGV4aWYAAHjarZpnclw5loX/YxW9BLgLsxzYiNnBLL+/g8ySSqrqiuiJYUrM5OMzwDXHAHTnf//n