gtkdoc-mkpdf --version (return code: 0)
1.25
gtkdoc-mkpdf --help (return code: 0)
gtkdoc-mkpdf version 1.25 - generate documentation in pdf format
--verbose Print extra output while processing
--path=SEARCH_PATH Extra source directories
--imgdir=DIR Extra image directories
MODULE Name of the doc module being parsed
DRIVER_FILE File containing the toplevel DocBook file.
--version Print the version of this program
--help Print this help