linux: Linux version 2.6.35.6-48.fc14.i686.PAE (...) (gcc version 4.5.1 20100924 (Red Hat 4.5.1-4) (GCC) ) #1 SMP Fri Oct 22 15:27:53 UTC 2010

wkhtmltopdf: wkhtmltopdf 0.10.0 rc2

perl: This is perl 5, version 12, subversion 2 (v5.12.2) built for i386-linux-thread-multi