<html><head><title>Zopli references</title></head>
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<h2>Zopfli references</h2>
<ul>
<li>
<a href="https://code.google.com/p/zopfli/downloads/detail?name=Data_compression_using_Zopfli.pdf&can=2&q=">
Data_compression_using_Zopfli.pdf</a>
<li><a href="http://zlib.net/pigz/">zlib.net/pigz</a> (parallel gzip)
<li><a href="http://zlib.net/zlib/">zlib.net</a> (zlib/examples/zpipe.c)
<li><a href="http://pmt.sourceforge.net/pngcrush/">pngcrush</a>
<li><a href="http://libpng.sourceforge.net/>pngfix</a>
(in contrib/tools of libpng-1.6.3 or later)
</ul>
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