# How to fix badboxes aligning wide figure in the marginpart

I want to align a figure in the left marginpar. I found a way using marginpar{/includegraphics}. However there are two things not coded correct.

• The figure (blackbox) is wider compared to the marginwidth, which gives a badbox. 'Overfull \hbox (60.98819pt too wide) in paragraph'
• And since I dont succeed in combining a figure environment with the \marginpar{} the text around the figure doesnt contain with space like normally.

Below my MWE.

Does somebody know a good way to provide an environmont for the figure in a way its aligned in the left marginpar, doesnt created badbox and has some blank space around it like a normal figure?

    \documentclass{scrreprt}

\usepackage[
includemp,
showframe,
reversemp,
paperwidth=20.10cm,
paperheight=25.80cm,
top=2.30cm,
bottom=3.4cm,
inner=2.7cm,
outer=2.7cm,
marginparwidth=1.6cm, % Fixed for now
marginparsep=0.4cm
]{geometry}

\usepackage{lipsum}
\usepackage{graphicx}
\usepackage{marginfix}

\makeatletter
\let\Gm@vrules@mpi\Gm@vrules@mpii
\makeatother % to set the marginpar on the left side in showframe

\begin{document}

\lipsum[1]

\marginpar{
\includegraphics[width=10cm]{blackbox}
}

\end{document}


Load the changepage package and use this code, which should do the trick:
\begin{adjustwidth}{-\dimexpr\marginparwidth+\marginparsep}{}