As requested:

Took the trouble to actually download the cited .pdf; saved to my \pl_test dir.

Modified your script to use the .pdf from the local dir as above.

W2k; perl -v: v5.8.8 built (819) for MSWin32-x86-multi-thread.

Using PPM, d/loaded and installed from Bribes: CAM-PDF-1.52 & various prereqs.

>perl -c F:\_wo\pl_test\pdftest.pl
F:\_wo\pl_test\pdftest.pl syntax OK

>perl F:\_wo\pl_test\pdftest.pl
Invalid xref stream: could not decode objstream 68
[download]

Looks familiar. Sorry, 5.10.1/linux not avail; hot weather cooked that box rather thoroughly.