The documentation for CAM::PDF has: "Many example programs are included in this distribution to do useful tasks. See the bin subdirectory."

At the top of that documentation page, you'll see "Chris Dolan > CAM-PDF-1.55 > CAM::PDF" - follow the CAM-PDF-1.55 link. Here you'll find a link to MANIFEST (which lists all the files in the bin directory) and, further down the page under Documentation, links to all the example programs. You can follow the Source link at the top of each example documentation page to see the code. Hopefully, you'll find one or more of these examples useful.

For future reference, most (if not all) CPAN module pages follow this general format.