\documentclass[border=-16mm]{standalone}
\usepackage{tikz}
\pagestyle{empty}

\begin{document}
\tikzset{outer sep=0pt, inner sep=0pt}%
\fboxrule=1pt%
\fboxsep=0pt%
\begin{tikzpicture}
\node at (0,0) {\includegraphics[trim=10cm 20.8cm 8cm 6cm, clip, angle=-90]{../IB0.pdf}};
\node[minimum width=6cm, draw=white, circle, line width=16mm] at (0,0) {};
\end{tikzpicture}%
\end{document}

