<s>
Ipe	B-Language
extensible	O
drawing	O
editor	O
is	O
a	O
free	O
vector	B-Application
graphics	I-Application
editor	I-Application
for	O
creating	O
figures	O
in	O
PDF	B-Application
or	O
EPS	B-Language
format	O
.	O
</s>
<s>
It	O
can	O
be	O
used	O
for	O
making	O
small	O
figures	O
for	O
inclusion	O
into	O
LaTeX	B-Application
documents	O
as	O
well	O
as	O
making	O
multi-page	O
PDF	B-Application
presentations	O
.	O
</s>
<s>
Ipe	B-Language
6	O
was	O
released	O
in	O
2003	O
which	O
changed	O
the	O
file	O
format	O
into	O
XML	O
code	O
embedded	O
into	O
PDF	B-Application
and	O
EPS	B-Language
files	I-Language
.	O
</s>
<s>
Ipe	B-Language
7	O
was	O
released	O
in	O
2009	O
.	O
</s>
<s>
Ipe	B-Language
7	O
(	O
see	O
below	O
)	O
can	O
be	O
compiled	O
under	O
Windows	O
,	O
macOS	O
and	O
Unix	O
but	O
binaries	O
are	O
available	O
for	O
many	O
distributions	O
.	O
</s>
<s>
Ipe	B-Language
graphics	O
can	O
be	O
stored	O
using	O
either	O
the	O
.ipe	B-Language
or	O
.xml	O
extension	O
.	O
</s>
<s>
But	O
they	O
can	O
also	O
be	O
stored	O
under	O
the	O
.pdf	B-Application
extension	O
which	O
is	O
the	O
most	O
convenient	O
way	O
to	O
be	O
integrated	O
into	O
LaTeX	B-Application
documents	O
.	O
</s>
<s>
Most	O
PDF	B-Application
graphics	O
can	O
be	O
converted	O
to	O
.ipe	B-Language
using	O
the	O
pdftoipe	O
tool	O
in	O
order	O
to	O
be	O
enriched	O
with	O
legends	O
using	O
the	O
mathematical	O
LaTeX	B-Application
language	O
.	O
</s>
<s>
Ipe	B-Language
lets	O
users	O
draw	O
geometric	O
objects	O
such	O
as	O
polylines	O
,	O
arcs	O
and	O
spline	O
curves	O
and	O
text	O
.	O
</s>
<s>
Ipe	B-Language
supports	O
use	O
of	O
layers	O
and	O
multiple	O
pages	O
.	O
</s>
<s>
It	O
can	O
paste	O
bitmap	O
images	O
from	O
clipboard	O
or	O
import	O
from	O
JPEG	O
or	O
BMP	O
,	O
and	O
also	O
through	O
a	O
conversion	O
software	O
it	O
can	O
import	O
PDF	B-Application
figures	O
generated	O
by	O
other	O
software	O
.	O
</s>
<s>
It	O
differentiates	O
itself	O
from	O
similar	O
programs	O
by	O
including	O
advanced	O
snapping	O
tools	O
and	O
the	O
ability	O
to	O
directly	O
include	O
LaTeX	B-Application
text	O
and	O
equations	O
.	O
</s>
<s>
Ipe	B-Language
is	O
extensible	O
by	O
use	O
of	O
ipelets	O
,	O
which	O
are	O
plugins	O
written	O
in	O
C++	B-Language
or	O
Lua	B-Language
.	O
</s>
<s>
IPE	B-Language
allows	O
the	O
user	O
to	O
insert	O
text	O
objects	O
containing	O
LaTeX	B-Application
code	O
.	O
</s>
<s>
This	O
is	O
converted	O
to	O
vector	O
graphics	O
by	O
parsing	O
the	O
output	O
of	O
pdfTeX	B-Language
.	O
</s>
<s>
This	O
is	O
often	O
not	O
the	O
case	O
if	O
other	O
drawing	B-Application
programs	I-Application
are	O
used	O
.	O
</s>
<s>
IPE	B-Language
7	O
is	O
the	O
current	O
version	O
of	O
IPE	B-Language
.	O
</s>
<s>
The	O
frontend	O
is	O
now	O
written	O
in	O
Lua	B-Language
and	O
includes	O
powerful	O
and	O
well-documented	O
plugin	O
system	O
.	O
</s>
<s>
Plugins	O
can	O
be	O
written	O
in	O
Lua	B-Language
or	O
C++	B-Language
.	O
</s>
<s>
The	O
OS/X	O
Ipe.app	O
bundle	O
(	O
since	O
version	O
7.1.1	O
)	O
can	O
be	O
built	O
and	O
shared	O
but	O
is	O
not	O
officially	O
maintained	O
by	O
Otfried	O
Cheong	O
(	O
see	O
the	O
Ipe7	O
wiki	O
site	O
)	O
.	O
</s>
