Two steps are required
Install module Error (at least version 0.15)
Reorganize files after unpacking from archive. File CreateSimple.pm should be moved to subdirectory lib/PDF.
Original archive structure is
PDF/
PDF/CreateSimple/
PDF/CreateSimple/README
PDF/CreateSimple/Makefile.PL
PDF/CreateSimple/MANIFEST
PDF/CreateSimple/Changes
PDF/CreateSimple/CreateSimple.pm~
PDF/CreateSimple/CreateSimple.pm
so change working directory to PDF/CreateSimple/, create lib/PDF subdirectory and move CreateSimple.pm into it.
After completing these steps you should be able to install module using commands:
perl Makefile.PL
make && make install
You do not need to bother with make test because there are no tests defined for this module.