\documentclass[style=classic,color=gray]{komacv}

\usepackage[utf8]{inputenc}

\renewcommand*{\title}{pdf title}
\renewcommand*{\firstname}{John}
\renewcommand*{\familyname}{Doe}
\renewcommand*{\acadtitle}{Master of the Universe}
\renewcommand*{\addressstreet}{address rd. 123}
\renewcommand*{\addresscity}{45678 The City}

\begin{document}
\maketitle
\section{Personal Information}
\cvitem{Nationality}{Awesome}
\end{document}