\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}