my $shell_out = `pdfinfo -v 2>&1 | grep version 2> /dev/null`;
my ($label,$vers,$ver_string) = split / /,$shell_out;
if ( $label && $label eq 'pdfinfo' ) {
my $shell_out = `pdfinfo -v 2>&1 | grep version 2> /dev/null`;
my ($label,$vers,$ver_string) = split / /,$shell_out;
if ( $label && $label eq 'pdfinfo' ) {