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Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 14 |
1 files changed, 14 insertions, 0 deletions
@@ -1,8 +1,22 @@ 2019-08-23 Jay Berkenbilt <ejb@ql.org> + * Add --recompress-streams option to qpdf and + QPDFWriter::setRecompressFlate to cause QPDFWriter to recompress + streams that are already compressed with /FlateDecode. + * Add option Pl_Flate::setCompressionLevel to globally set the zlib compression level used by all Pl_Flate pipelines. + * Add --compression-level flag to qpdf to set the zlib compression + level. When combined with --recompress-flate, this will cause most + of qpdf's streams to use the maximum compression level. This + results in only a very small amount of savings in size that comes + at a fairly significant performance cost, but it could be useful + for archival files or other cases where every byte counts and + creation time doesn't matter so much. Note that using + --object-streams=generate in combination with these options gives + you the biggest advantage. Fixes #113. + 2019-08-22 Jay Berkenbilt <ejb@ql.org> * In QPDFObjectHandle::ParserCallbacks, in addition to |