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Editing: pdf-deoptimize.pl
#!/usr/bin/perl use PDF::API2::Basic::PDF::File; use PDF::API2::Basic::PDF::Utils; use PDF::API2; use Compress::Zlib; use Scalar::Util qw(blessed); sub walk_obj { my ($objs,$spdf,$tpdf,$obj,@keys)=@_; my $tobj; if(ref($obj)=~/Objind$/) { $obj->realise; } return($objs->{scalar $obj}) if(defined $objs->{scalar $obj}); die "object already copied" if( $obj->{' copied'}); $tobj=$obj->copy($spdf); $obj->{' copied'}=1; $tpdf->new_obj($tobj) if($obj->is_obj($spdf) && !$tobj->is_obj($tpdf)); $objs->{scalar $obj}=$tobj; if(ref($obj)=~/Array$/ || (blessed($obj) && $obj->isa('PDF::API2::Basic::PDF::Array'))) { $tobj->{' val'}=[]; foreach my $k ($obj->elements()) { $k->realise if(ref($k)=~/Objind$/); $tobj->add_elements(walk_obj($objs,$spdf,$tpdf,$k)); } } elsif(ref($obj)=~/Dict$/ || (blessed($obj) && $obj->isa('PDF::API2::Basic::PDF::Dict'))) { @keys=keys(%{$tobj}) if(scalar @keys <1); foreach my $k (@keys) { next if($k=~/^ /); next unless(defined($obj->{$k})); $tobj->{$k}=walk_obj($objs,$spdf,$tpdf,$obj->{$k}); } if($obj->{' stream'}) { if($tobj->{Filter} && !$tobj->{DecodeParms}) { my $f=$tobj->{Filter}; $f=PDFArray($f) unless(ref($f)=~/Array/); if(scalar($f->elements()) == 1) { my ($t)=$f->elements(); if($t->val eq 'FlateDecode') { $tobj->{' stream'}=uncompress($obj->{' stream'}); delete $tobj->{Filter}; $tobj->{Length}=PDFNum(length($tobj->{' stream'})); } else { $tobj->{' stream'}=$obj->{' stream'}; } } else { $tobj->{' stream'}=$obj->{' stream'}; } $tobj->{' nofilt'}=1; } else { $tobj->{' stream'}=$obj->{' stream'}; } } } delete $tobj->{' streamloc'}; delete $tobj->{' streamsrc'}; return($tobj); } if(scalar @ARGV<2) { print "usage: $0 infile outfile\n"; exit(1); } $spdf=PDF::API2::Basic::PDF::File->open($ARGV[0]); $tpdf=PDF::API2::Basic::PDF::File->_new; $mycache={}; $tpdf->{Root}=walk_obj($mycache,$spdf,$tpdf,$spdf->{Root}); $tpdf->{Info}=walk_obj($mycache,$spdf,$tpdf,$spdf->{Info}) if $spdf->{Info}; $tpdf->out_file($ARGV[1]);
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