LaTeX Forum

\documentclass[ngerman]{scrbook}
\usepackage{babel}
\usepackage[T1]{fontenc} 
\usepackage[utf8]{inputenc}   
\usepackage{blindtext}% nur für Fülltext

\begin{document} 
\begin{itemize} 
\item
  \blindtext 
  \begin{center}
    \begin{minipage}{\linewidth}
      \centering 
      \includegraphics[width=0.65\textwidth]{example-image} 
      \captionof{figure}{Bildunterschrift lang: \blindtext} 
      \label{label} 
    \end{minipage} 
  \end{center}
\end{itemize} 
\end{document}

\documentclass[
  pagesize,                                              
  a4paper,                                              
  oneside,                                            
  BCOR5mm,                                      
  headsepline,                                        
  headings=small,
  openright,
  cleardoublepage=empty,
  parident,
  11.5pt,                                                
  abstracton,                  
  %draft,                  
  final,                  
  ]{scrbook}                                            
\KOMAoptions{DIV=12}              

%-Bibliography--------------------------------------------------------------------
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}  
\usepackage[babel,german=guillemets]{csquotes}
\usepackage{comment}
\usepackage[autolang=other,style=authoryear-icomp,backend=biber,sorting=nyt,maxcitenames=1]{biblatex}

\apptocmd{\UrlBreaks}{\do\f\do\m}{}{}        
\setcounter{biburllcpenalty}{9000}        
\setcounter{biburlucpenalty}{9000}        

\addbibresource{bibliographie.bib}
%---------------------------------------------------------------------------------------------------
 \usepackage[pdftex]{graphicx}                          
 \usepackage{rotating}
 \usepackage[labelfont={bf,sf},font={small},labelsep=colon]{caption}
 \usepackage{subcaption}
\usepackage{blindtext}

\usepackage[colorlinks, linkcolor = black, citecolor = black, filecolor = black, urlcolor = blue]{hyperref}
%--Sprachpakete--------------------------------------------------------------------------
\usepackage[english,ngerman]{babel}                    
\usepackage{amsmath}                          
\usepackage{amssymb}
                                                     
                                                       
                                                     
\usepackage{array,ragged2e}              
\newcommand{\eqhat}{\ensuremath{\mathrel{\widehat{=}}}}
%---------------------------------------------------------------------------------------------------
\usepackage[automark]{scrpage2}                        
\usepackage{xspace}                                    
\usepackage[onehalfspacing]{setspace}                
\usepackage[absolute,overlay]{textpos}                    
\usepackage{bibgerm}                      
\usepackage[final]{pdfpages}                          
\usepackage{tabularx}                                  
\usepackage{makeidx}              
\usepackage[intoc,
   german,
   prefix]{nomencl}

\makenomenclature
\usepackage{threeparttable}
\usepackage[locale=DE]{siunitx}
\usepackage{eurosym}
\usepackage{multicol}
\usepackage{pgfplots}
\DeclareSIUnit{\EUR}{\text{\euro}}
\sisetup{
  per-mode = fraction,
  %inter-unit-product = \ensuremath{{}\cdot{}},
}
%---------------------------------------------------------------------------------------------------
% Inhaltsverzeichnis und Abschnittnummerierung
%---------------------------------------------------------------------------------------------------
\setcounter{secnumdepth}{1}
\setcounter{tocdepth}{1}

%---------------------------------------------------------------------------------------------------
% Abbildungsverzeichnis
%---------------------------------------------------------------------------------------------------
\graphicspath{{}}

%---------------------------------------------------------------------------------------------------
% Kopf- und Fußzeilen
%---------------------------------------------------------------------------------------------------
\pagestyle{scrheadings}
\clearscrheadings
\clearscrplain
\clearscrheadfoot
\ohead{\pagemark}
\ihead{\headmark}

%---------------------------------------------------------------------------------------------------
% Trennung
%---------------------------------------------------------------------------------------------------
%\input{../einstellungen/trennungen.sty}

\tolerance 1414
\hbadness 1414
\emergencystretch 1.5em
\hfuzz 0.3pt
\widowpenalty=10000
\vfuzz \hfuzz
\raggedbottom

\begin{document}
\begin{itemize}
\blindtext
       \begin{figure}[htbp!]
    \centering
      \includegraphics[width=0.65\textwidth]{example-image}
      \caption{Bildunterschrift lang: \blindtext}
      \label{label}
  \end{figure}
\end{itemize}
\end{document}