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#!/usr/bin/perl
#
# Wrapper around a variety of programs that can do PS -> PDF conversion
#
use strict;
use File::Spec;
my $compress = 1;
my $win32_ok = eval {
require Win32::TieRegistry;
Win32::TieRegistry->import();
1;
};
while ($ARGV[0] =~ /^-(.*)$/) {
my $opt = $1;
shift @ARGV;
if ($opt eq 'nocompress') {
$compress = 0;
}
}
# Ghostscript executable name. "gs" on Unix-based systems.
my $gs = 'gs';
my ($in, $out, $fontpath) = @ARGV;
if (!defined($out)) {
die "Usage: $0 [-nocompress] infile outfile [fontpath]\n";
}
# If Win32, help GhostScript out with some defaults
sub win32_gs_help() {
return if (!$win32_ok);
use Sort::Versions;
use sort 'stable';
my $Reg = $::Registry->Open('', {Access => 'KEY_READ', Delimiter => '/'});
my $dir;
my @gs;
foreach my $k1 ('HKEY_CURRENT_USER/Software/',
'HKEY_LOCAL_MACHINE/SOFTWARE/') {
foreach my $k2 ('Artifex/', '') {
foreach my $k3 ('GPL Ghostscript/', 'AFPL Ghostscript/',
'Ghostscript/') {
my $r = $Reg->{$k1.$k2.$k3};
if (ref($r) eq 'Win32::TieRegistry') {
foreach my $k (keys(%$r)) {
my $rk = $r->{$k};
if (ref($rk) eq 'Win32::TieRegistry' &&
defined($rk->{'/GS_LIB'})) {
push @gs, $rk;
}
}
}
}
}
}
@gs = sort {
my($av) = $a->Path =~ m:^.*/([^/]+)/$:;
my($bv) = $b->Path =~ m:^.*/([^/]+)/$:;
versioncmp($av, $bv);
} @gs;
return unless (scalar(@gs));
$ENV{'PATH'} .= ';' . $gs[0]->{'/GS_LIB'};
$ENV{'GS_FONTPATH'} .= (defined($ENV{'GS_FONTPATH'}) ? ';' : '')
. $ENV{'windir'}.'\\fonts';
my $gsp = undef;
foreach my $p (split(/\;/, $gs[0]->{'/GS_LIB'})) {
foreach my $exe ('gswin64c.exe', 'gswin32c.exe', 'gs.exe') {
last if (defined($gsp));
my $e = File::Spec->catpath($p, $exe);
$gsp = $e if (-f $e && -x _);
}
}
$gs = $gsp if (defined($gsp));
}
# Remove output file
unlink($out);
# 1. Acrobat distiller
my $r = system('acrodist', '-n', '-q', '--nosecurity', '-o', $out, $in);
exit 0 if ( !$r && -f $out );
# 2. ps2pdf (from Ghostscript)
#
# GhostScript uses # rather than = to separate options and values on Windows,
# it seems. Similarly it uses ; in path lists rather than :.
# Call gs directly rather than ps2pdf, because -dSAFER
# breaks font discovery on some systems, apparently.
win32_gs_help();
my $o = $win32_ok ? '#' : '=';
my $p = $win32_ok ? ';' : ':';
my $fpopt;
if (defined($fontpath)) {
my @fplist = ();
open(my $fp, '<', $fontpath) or die "$0: $fontpath: $!\n";
while (my $fpe = <$fp>) {
chomp $fpe;
push(@fplist, $fpe);
}
close($fp);
$fpopt = "-sFONTPATH${o}" . join($p, @fplist);
}
my $r = system($gs, "-dCompatibilityLevel${o}1.3",
"-I".File::Spec->curdir(),
"-P-", "-dNOPAUSE", "-dBATCH", "-sDEVICE${o}pdfwrite",
"-sstdout${o}%stderr", "-sOutputFile${o}${out}",
"-dOptimize${o}true",
"-dEmbedAllFonts${o}true", "-dSubsetFonts${o}true",
"-dMaxSubsetPct${o}100",
$fpopt,
"-dCompressPages${o}" . ($compress ? 'true' : 'false'),
"-dUseFlateCompression${o}true",
"-f", $in);
exit 0 if ( !$r && -f $out );
# 3. pstopdf (BSD/MacOS X utility)
my $r = system('pstopdf', $in, '-o', $out);
exit 0 if ( !$r && -f $out );
# Otherwise, fail
unlink($out);
exit 1;
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