<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - pdftops sometimes creates huge PS 3 files out of small PDFs" href="https://bugs.freedesktop.org/show_bug.cgi?id=81760#c22">Comment # 22</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - pdftops sometimes creates huge PS 3 files out of small PDFs" href="https://bugs.freedesktop.org/show_bug.cgi?id=81760">bug 81760</a> from <a class="email" href="mailto:williambader@hotmail.com" title="William Bader <williambader@hotmail.com>"> William Bader</a> <pre>Created <a href="attachment.cgi?id=121582" name="attach_121582" title="patch to add LZW and Flate compression">attachment 121582</a> <a href="attachment.cgi?id=121582&action=edit" title="patch to add LZW and Flate compression">[details]</a> <a href='page.cgi?id=splinter.html&bug=81760&attachment=121582'>[review]</a> patch to add LZW and Flate compression This patch adds LZW and Flate compression. Flate should happen only with Level 3. LZW should happen with Level 2 (and Level 3 when Flate is not enabled). ./configure has the options --disable-zlib = disable flate compression (the default is enabled if zlib is present) --enable-zlib-uncompress = enable flate decompression using zlib instead of poppler's built-in flate decompression. This corresponds to the old --enable-zlib and is unsafe because zlib does not handle invalid streams as well as poppler. cmake has corresponding options -DENABLE_ZLIB=OFF -DENABLE_ZLIB_UNCOMPRESS=ON. I tested configure more than cmake. Errors in deflateInit() set the stream eof flag and print an error message with error(errInternal). I removed the -nolzw option in pdftops. The LZW encoder is in Stream.cc and .h The Flate encoder is in the new files FlateEncoder.cc and .h. I didn't touch the copyrights except in FlateEncoder. Since most of the LZW encoder came from xpdf-3.04, Derek should probably get the credit for it. Regards, William</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>