<s>
FontForge	B-Application
is	O
a	O
FOSS	B-License
font	O
editor	O
which	O
supports	O
many	O
common	O
font	O
formats	O
.	O
</s>
<s>
Developed	O
primarily	O
by	O
George	O
Williams	O
until	O
2012	O
,	O
FontForge	B-Application
is	O
free	O
software	O
and	O
is	O
distributed	O
under	O
a	O
mix	O
of	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
Version	O
3	O
and	O
the	O
3-clause	O
BSD	B-Operating_System
license	I-Operating_System
.	O
</s>
<s>
It	O
is	O
available	O
for	O
operating	O
systems	O
including	O
Linux	B-Application
,	O
Windows	O
,	O
and	O
macOS	B-Application
,	O
and	O
is	O
localized	O
into	O
12	O
languages	O
.	O
</s>
<s>
To	O
facilitate	O
automated	O
format	O
conversion	O
and	O
other	O
repetitive	O
tasks	O
,	O
FontForge	B-Application
implements	O
two	O
scripting	B-Language
languages	I-Language
:	O
its	O
own	O
language	O
and	O
Python	B-Language
.	O
</s>
<s>
FontForge	B-Application
can	O
run	O
scripts	O
from	O
its	O
GUI	O
,	O
from	O
the	O
command	O
line	O
,	O
and	O
also	O
offers	O
its	O
features	O
as	O
a	O
Python	B-Language
module	O
,	O
so	O
it	O
can	O
be	O
integrated	O
into	O
any	O
Python	B-Language
program	I-Language
.	O
</s>
<s>
FontForge	B-Application
supports	O
Adobe	O
's	O
OpenType	O
feature	O
file	O
specification	O
(	O
with	O
its	O
own	O
extensions	O
to	O
the	O
syntax	O
)	O
.	O
</s>
<s>
It	O
also	O
supports	O
the	O
unofficial	O
Microsoft	O
mathematical	O
typesetting	O
extensions	O
(	O
MATH	O
table	O
)	O
introduced	O
for	O
Cambria	O
Math	O
and	O
supported	O
by	O
Office	B-Application
2007	I-Application
,	O
XeTeX	B-Application
and	O
LuaTeX	B-Language
.	O
</s>
<s>
At	O
least	O
one	O
free	O
OpenType	O
mathematical	O
font	O
has	O
been	O
developed	O
in	O
FontForge	B-Application
.	O
</s>
<s>
FontForge	B-Application
uses	O
FreeType	B-Application
for	O
rendering	O
fonts	O
on	O
screen	O
.	O
</s>
<s>
Since	O
the	O
November	O
15	O
,	O
2008	O
release	O
,	O
FontForge	B-Application
uses	O
libcairo	B-Language
and	O
libpango	B-Language
software	O
libraries	O
for	O
graphics	O
and	O
text	O
rendering	O
,	O
providing	O
anti-aliased	O
graphics	O
and	O
complex	O
text	O
layout	O
support	O
.	O
</s>
<s>
FontForge	B-Application
can	O
use	O
Potrace	B-Application
or	O
AutoTrace	O
to	O
auto	O
trace	O
bitmap	O
images	O
and	O
import	O
them	O
into	O
a	O
font	O
.	O
</s>
<s>
Parts	O
of	O
FontForge	B-Application
's	O
code	O
are	O
used	O
by	O
the	O
LuaTeX	B-Language
typesetting	O
engine	O
for	O
reading	O
and	O
parsing	O
OpenType	O
fonts	O
.	O
</s>
<s>
The	O
FontForge	B-Application
source	O
code	O
includes	O
a	O
number	O
of	O
utility	O
programs	O
,	O
including	O
'	O
showttf	O
 '	O
,	O
which	O
shows	O
the	O
contents	O
of	O
binary	O
font	O
files	O
,	O
and	O
a	O
WOFF	O
converter	O
and	O
deconverter	O
.	O
</s>
<s>
FontForge	B-Application
supports	O
a	O
wide	O
variety	O
of	O
font	O
formats	O
.	O
</s>
<s>
Its	O
native	O
Spline	O
Font	O
Database	O
format	O
(	O
.sfd	B-Application
file	O
name	O
extension	O
)	O
is	O
text-based	B-Application
and	O
facilitates	O
collaboration	O
between	O
designers	O
,	O
as	O
difference	B-Application
files	I-Application
can	O
be	O
easily	O
created	O
.	O
</s>
<s>
FontForge	B-Application
also	O
supports	O
the	O
interoperable	O
UFO	O
source	O
format	O
,	O
which	O
is	O
based	O
on	O
XML	O
.	O
</s>
<s>
Supported	O
font	O
formats	O
include	O
:	O
TrueType	O
(	O
TTF	O
)	O
,	O
TrueType	O
Collection	O
(	O
TTC	O
)	O
,	O
OpenType	O
(	O
OTF	O
)	O
,	O
PostScript	O
Type	O
1	O
,	O
TeX	O
Bitmap	O
Fonts	O
,	O
X11	O
OTB	O
bitmap	O
(	O
only	O
sfnt	O
)	O
,	O
Glyph	B-Device
Bitmap	I-Device
Distribution	I-Device
Format	I-Device
(	O
BDF	B-Device
)	O
,	O
FON	O
(	O
Windows	O
)	O
,	O
FNT	O
(	O
Windows	O
)	O
,	O
and	O
Web	O
Open	B-License
Font	I-License
Format	O
(	O
WOFF	O
)	O
.	O
</s>
<s>
FontForge	B-Application
also	O
imports	O
and	O
exports	O
fonts	O
to	O
and	O
from	O
the	O
Scalable	B-Application
Vector	I-Application
Graphics	I-Application
(	O
SVG	B-Application
)	O
format	O
and	O
the	O
Unified	O
Font	O
Object	O
(	O
UFO	O
)	O
format	O
.	O
</s>
<s>
The	O
FontForge	B-Application
project	O
was	O
founded	O
by	O
George	O
Williams	O
as	O
a	O
retirement	O
project	O
,	O
and	O
initially	O
published	O
from	O
2001	O
to	O
March	O
2004	O
as	O
PfaEdit	B-Application
)	O
.	O
</s>
<s>
In	O
mid-2011	O
,	O
Dave	O
Crossland	O
began	O
contributing	O
to	O
the	O
project	O
and	O
the	O
project	O
moved	O
from	O
SourceForge	B-Application
to	O
GitHub	B-Application
.	O
</s>
<s>
FontForge	B-Application
's	O
development	O
became	O
more	O
active	O
,	O
and	O
Khaled	O
Hosny	O
and	O
Barry	O
Schwartz	O
were	O
notable	O
contributors	O
,	O
but	O
in	O
late	O
2012	O
they	O
and	O
Crossland	O
disagreed	O
about	O
the	O
direction	O
of	O
the	O
project	O
so	O
they	O
forked	O
FontForge	B-Application
as	O
SortsMill	O
Tools	O
.	O
</s>
<s>
In	O
2011	O
,	O
FontForge	B-Application
was	O
packaged	O
for	O
easier	O
installation	O
on	O
Mac	B-Application
OS	I-Application
X	O
by	O
Dr.	O
Ben	O
Martin	O
with	O
support	O
from	O
TUG	O
.	O
</s>
<s>
In	O
2013	O
,	O
the	O
FontForgeBuilds	O
project	O
was	O
started	O
on	O
SourceForge	B-Application
to	O
extend	O
this	O
;	O
it	O
was	O
subsequently	O
entirely	O
rewritten	O
,	O
and	O
is	O
today	O
maintained	O
by	O
Jeremy	O
Tan	O
as	O
a	O
Windows	O
application	O
.	O
</s>
<s>
In	O
2012	O
,	O
Crossland	O
organized	O
a	O
new	O
project	O
website	O
to	O
be	O
hosted	O
on	O
GitHub	B-Protocol
Pages	I-Protocol
,	O
,	O
and	O
used	O
funds	O
raised	O
from	O
teaching	O
FontForge	B-Application
to	O
beginners	O
to	O
hire	O
a	O
contract	O
web	O
designer	O
.	O
</s>
