diff options
Diffstat (limited to 'qpdf/qpdf.cc')
| -rw-r--r-- | qpdf/qpdf.cc | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/qpdf/qpdf.cc b/qpdf/qpdf.cc index a0f7f7ea..a5eef425 100644 --- a/qpdf/qpdf.cc +++ b/qpdf/qpdf.cc @@ -13,6 +13,7 @@ #include <qpdf/Pl_Discard.hh> #include <qpdf/Pl_DCT.hh> #include <qpdf/Pl_Count.hh> +#include <qpdf/Pl_Flate.hh> #include <qpdf/PointerHolder.hh> #include <qpdf/QPDF.hh> @@ -124,6 +125,9 @@ struct Options stream_data_mode(qpdf_s_compress), compress_streams(true), compress_streams_set(false), + recompress_flate(false), + recompress_flate_set(false), + compression_level(-1), decode_level(qpdf_dl_generalized), decode_level_set(false), normalize_set(false), @@ -217,6 +221,9 @@ struct Options qpdf_stream_data_e stream_data_mode; bool compress_streams; bool compress_streams_set; + bool recompress_flate; + bool recompress_flate_set; + int compression_level; qpdf_stream_decode_level_e decode_level; bool decode_level_set; bool normalize_set; @@ -632,6 +639,8 @@ class ArgParser void argCollate(); void argStreamData(char* parameter); void argCompressStreams(char* parameter); + void argRecompressFlate(); + void argCompressionLevel(char* parameter); void argDecodeLevel(char* parameter); void argNormalizeContent(char* parameter); void argSuppressRecovery(); @@ -847,6 +856,9 @@ ArgParser::initOptionTable() &ArgParser::argStreamData, stream_data_choices); (*t)["compress-streams"] = oe_requiredChoices( &ArgParser::argCompressStreams, yn); + (*t)["recompress-flate"] = oe_bare(&ArgParser::argRecompressFlate); + (*t)["compression-level"] = oe_requiredParameter( + &ArgParser::argCompressionLevel, "level"); char const* decode_level_choices[] = {"none", "generalized", "specialized", "all", 0}; (*t)["decode-level"] = oe_requiredChoices( @@ -1328,6 +1340,9 @@ ArgParser::argHelp() << "--stream-data=option controls transformation of stream data (below)\n" << "--compress-streams=[yn] controls whether to compress streams on output\n" << "--decode-level=option controls how to filter streams from the input\n" + << "--recompress-flate recompress streams already compressed with Flate\n" + << "--compression-level=n set zlib compression level; most effective with\n" + << " --recompress-flate --object-streams=generate\n" << "--normalize-content=[yn] enables or disables normalization of content streams\n" << "--object-streams=mode controls handing of object streams\n" << "--preserve-unreferenced preserve unreferenced objects\n" @@ -1725,6 +1740,19 @@ ArgParser::argCompressStreams(char* parameter) } void +ArgParser::argRecompressFlate() +{ + o.recompress_flate_set = true; + o.recompress_flate = true; +} + +void +ArgParser::argCompressionLevel(char* parameter) +{ + o.compression_level = QUtil::string_to_int(parameter); +} + +void ArgParser::argDecodeLevel(char* parameter) { o.decode_level_set = true; @@ -4889,6 +4917,10 @@ static void set_encryption_options(QPDF& pdf, Options& o, QPDFWriter& w) static void set_writer_options(QPDF& pdf, Options& o, QPDFWriter& w) { + if (o.compression_level >= 0) + { + Pl_Flate::setCompressionLevel(o.compression_level); + } if (o.qdf_mode) { w.setQDFMode(true); @@ -4913,6 +4945,10 @@ static void set_writer_options(QPDF& pdf, Options& o, QPDFWriter& w) { w.setCompressStreams(o.compress_streams); } + if (o.recompress_flate_set) + { + w.setRecompressFlate(o.recompress_flate); + } if (o.decode_level_set) { w.setDecodeLevel(o.decode_level); |