Sneak peek of the potential WOFF 2.0 compression improvement results for OpenType (.otf) fonts

While I still have to update the reference compression tools to
support OpenType (.otf) fonts, I wanted to gather some early potential
compression improvement results.  Here is a straightforward and simple
comparison of .otf fonts compressed with GZIP vs. LZMA (which is core
to WOFF 2.0).  It's possible that with WOFF 2.0, the results could be
even better.

LZMA Compression w/ Open Font Library fonts
https://docs.google.com/spreadsheet/ccc?key=0AvcH1ZzSrGMGdGlCcTlSaWhYYmxhQkFDSWM4dlJoenc#gid=0

In summary (for this collection of fonts):

Average: 12.96%
Median: 13.18%
Stdev: 3.26%
Min: 4.75%
Max: 26.32%

To elaborate on how the data was gathered, it's a straightforward
comparison of the resulting file sizes when using the gzip and lzma
command line tools. e.g.

$ lzma Pecita.otf
$ gzip Pecita.otf

Received on Wednesday, 22 May 2013 00:29:23 UTC