答案1
您可以使用 tikz 来剪辑它:
\documentclass{article}
\usepackage{tikz,graphicx}
\begin{document}
\newsavebox\mybox
\savebox\mybox{\includegraphics[width=10cm]{example-image-duck}}
\begin{tikzpicture}
\clip(0,0)--++(0,\ht\mybox)--++(0.5\wd\mybox,0)--++(0,-1cm)--++(0.5\wd\mybox,0)--++(0,-\ht\mybox+1cm)--cycle;
\node[inner sep=0pt,anchor=south west]{\usebox\mybox};
\end{tikzpicture}
\end{document}