Reference Compression Tool Updates: CFF, WOFF 1.0 vs. WOFF 2.0 comparisons

Yesterday, two changes were submitted to the Font Compression Reference project:
https://code.google.com/p/font-compression-reference/

The first change added CFF support to the compression tools.
Specifically, wrapping the font data in the WOFF 2.0 wrapper and
compressing each table using LZMA.  With the CFF support in place, we
can now gather early compression improvement numbers for CFF fonts as
well.  Here for reference are the numbers for the Open Font Library
(CFF) fonts:

WOFF 2.0 Compression w/ Open Font Library (CFF) fonts
https://docs.google.com/spreadsheet/ccc?key=0AvcH1ZzSrGMGdE93elRrWWp3TXRtdUNpa01kekhtc0E#gid=0

Average: 11.28%
Median: 11.08%
Stdev: 3.09%
Min: 3.85%
Max: 25.70%

The second change updated the comparisons.  Previously the tool
compared the compression improvement of WOFF 2.0 over GZIP.  Now the
tool compares WOFF 1.0 and WOFF 2.0.  While the difference between
GZIP and WOFF 1.0 small, on the order of a couple hundred bytes, the
WOFF 1.0 vs. 2.0 comparison is more relevant to advancing the
specification.

Thank you!

Received on Thursday, 30 May 2013 00:44:44 UTC