\RequirePackage{fix-cm}
\errorcontextlines=\maxdimen 

\documentclass[a4paper, pdftex]{article}

\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\usepackage{cmap} 
\usepackage[a-1b]{pdfx} 
\usepackage{listings}
\usepackage{filecontents}
\usepackage{lipsum}
\usepackage{hyperref}

\pdfminorversion=4
\pdfobjcompresslevel=0
\pdfcompresslevel=0

\usepackage{color}
 
\definecolor{codegreen}{rgb}{0,0.6,0}
\definecolor{codegray}{rgb}{0.5,0.5,0.5}
\definecolor{codepurple}{rgb}{0.58,0,0.82}
\definecolor{backcolour}{rgb}{0.95,0.95,0.92}
 
\lstdefinestyle{codestyle}{
    backgroundcolor=\color{backcolour},   
    numberstyle=\tiny\color{codegray},
    stringstyle=\color{codepurple},
    basicstyle=\footnotesize,
    breakatwhitespace=false,         
    breaklines=true,                 
    captionpos=b,                    
    keepspaces=true,                 
    numbers=left,                    
    numbersep=5pt,                  
    showspaces=false,                
    showstringspaces=false,
    showtabs=false,                  
    tabsize=2
}
 
\lstset{style=codestyle}

\title{Manual PDF/A in \LaTeX{}}
\author{Raman Ganguly}
\date{ }
 

\begin{filecontents*}{latex_pdfa.xmpdata}

\Title{Manual PDF A in LaTeX}
\Author{Raman Ganguly}
\Org{University of Vienna}
\Keywords{PDF/A}

\end{filecontents*}

\begin{document}

\maketitle
 
\tableofcontents

\newpage

\section{Manual}

Erstellen eines PDF/A-1b Dokument in \LaTeX{} basierend auf den PDF 1.5 Standard. Als Beispeil hier hello\_world.tex

\lstinputlisting [language=TeX]{hello_world.tex}


\newpage

\section{Blindtext}
\lipsum

\end{document}
