\documentclass{article}
\usepackage{incgraph}

\igrset{paper=letter,
        zerofill=4,
        bookmark={Page \theigrpage\ (\nt)}
        }

\begin{document}%
  \incgraph{example.jpg}
  \incmultigraph{exaimage-\nn.png}{1,...,150}
\end{document}
