\documentclass[a5paper]{scrartcl}
\usepackage{hyperref}   % links im text
\pagenumbering{gobble} % disable page numbering

\hypersetup{ 
  pdfauthor   = {Martin Thoma}, 
  pdfkeywords = {Blank PDF}, 
  pdftitle    = {Blank PDF} 
} 

\begin{document}
~
\end{document}
