\begin{tikzpicture}[x=32.36067978bp,y=20bp]% \clip (0,0) rectangle (10,10); \path [draw,fill=black!25,ultra thick] (0,0) rectangle (10,10); \path let \p1=(1.5,0), \p2=(1.8,0), \p3=(.4,0), \p4 = (.48,0) in node at (5,5) {\sffamily\fontsize{\x1}{\x2}\selectfont Golden ratio} node at (5,2) {\sffamily\fontsize{\x3}{\x4}\selectfont (Original size: 32.361$\times$200 bp)} ; \end{tikzpicture}%