L'extension `cutwin` permet, assez laborieusement, de deécouper découper une fenêtre de forme arbitraire dans un (unique) paragraphe et d'y placer ce que l'on veut :
\documentclass[10pt, BCOR=0mm, DIV=11, a5paper, oneside, french]{scrartcl}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[fulloldstyle,largesmallcaps]{kpfonts}
\newcommand{\csn}{\classicstylenums}
\usepackage{tikz}
\usepackage{lipsum}
\usepackage{babel}
\usepackage{cutwin}
\begin{document}%
\pagestyle{empty}%
\lipsum[5]
\medskip
\opencutcenter
\renewcommand*\putstuffinpic{\put(0,-54){\makebox(0,0){\begin{tikzpicture}
\draw[thick,rounded corners=8pt]
(0,0) -- (0,2) -- (1,3.25) -- (2,2) -- (2,0) -- (0.95,1) -- (2,2) -- (0,2) -- (1.05,1) -- (0,0) -- (2,0);
\end{tikzpicture}}}}
\newcommand*\mycut{%
0.48\textwidth, 0.48\textwidth,
0.44\textwidth, 0.44\textwidth,
0.40\textwidth, 0.40\textwidth,
0.36\textwidth, 0.36\textwidth,
0.36\textwidth, 0.36\textwidth,
0.36\textwidth, 0.36\textwidth,
0.36\textwidth, 0.36\textwidth,
0.36\textwidth, 0.36\textwidth,
0.36\textwidth, 0.36\textwidth,
0.36\textwidth, 0.36\textwidth
}%
\begin{shapedcutout}{2}{10}{\mycut}
\lipsum[1]
\end{shapedcutout}
\end{document}
![alt text][1]
[1]: http://texnique.fr:80/osqa/upfiles/flowingtext.png
