\documentclass{article}
\usepackage{incgraph,tikz}

\igrset{paper=graphics,
        zerofill=4,
        options={width=18cm},
        overlay page number at top=7mm}

\igrsetmatches{   1 = A very red image,
                123 = A greenish example }

\begin{document}

  \incgraph[bookmark={Page \theigrpage: My first example}]{example.jpg}

  \incmultigraph[if match set bookmark=
    {\n}{Page \theigrpage: \igrmatchvalue}{Page \theigrpage}]
    {exaimage-\nn.png}{1,...,150}

\end{document}