The link is not working because it references the fixed CAM::PDF version 1.08. The current version is (at the time of writing) 1.60. It's not hard to find a correct link for that.

I just tried to put a "permalink" to the latest version:

http://search.cpan.org/dist/CAM-PDF/bin/getpdftext.pl links to the version of the script in the latest distribution.