The font files in this directory are Modified Works based on
TeX Gyre Pagella. You may obtain the unmodified works from
http://www.gust.org.pl/projects/e-foundry/tex-gyre/pagella

The modifications are:
1) Removing the bolditalic style.
2) Converting the OTF fonts to TTF using FontForge (*-ttf.*).
3) Autohinting the TTF fonts with ttfautohint (*-ah.*)
4) Converting to WOFF (*.woff)

See
http://www.gust.org.pl/projects/e-foundry/licenses/GUST-FONT-SOURCE-LICENSE.txt/view
and the *-orig.txt files.