<s>
TeXworks	B-Operating_System
is	O
free	O
and	O
open-source	O
application	O
software	O
,	O
available	O
for	O
Windows	B-Application
,	O
Linux	B-Application
and	O
macOS	B-Application
.	O
</s>
<s>
It	O
is	O
a	O
Qt-based	O
graphical	B-Application
user	I-Application
interface	I-Application
to	O
the	O
TeX	B-Application
typesetting	O
system	O
and	O
its	O
LaTeX	B-Application
,	O
ConTeXt	O
,	O
and	O
XeTeX	B-Application
extensions	O
.	O
</s>
<s>
TeXworks	B-Operating_System
is	O
targeted	O
at	O
direct	O
generation	O
of	O
PDF	B-Application
output	O
.	O
</s>
<s>
It	O
has	O
a	O
built-in	O
PDF	B-Application
viewer	O
using	O
the	O
poppler	B-Language
library	O
;	O
the	O
viewer	O
has	O
auto-refresh	O
capability	O
,	O
and	O
also	O
features	O
SyncTeX	O
support	O
(	O
which	O
allows	O
the	O
user	O
to	O
synchronize	O
the	O
PDF	B-Application
viewer	O
position	O
with	O
the	O
source	O
,	O
and	O
vice	O
versa	O
with	O
a	O
single	O
click	O
)	O
.	O
</s>
<s>
The	O
developer	O
of	O
TeXworks	B-Operating_System
is	O
Jonathan	O
Kew	O
(	O
who	O
also	O
developed	O
XeTeX	B-Application
)	O
,	O
who	O
deliberately	O
modelled	O
TeXworks	B-Operating_System
on	O
Richard	O
Koch	O
’s	O
award-winning	O
TeXShop	B-Language
software	O
for	O
macOS	B-Application
to	O
lower	O
the	O
entry	O
barrier	O
to	O
the	O
TeX	B-Application
world	O
for	O
those	O
using	O
desktop	O
operating	O
systems	O
other	O
than	O
macOS	B-Application
.	O
</s>
<s>
Kew	O
argued	O
against	O
complex	O
user	O
interfaces	O
like	O
that	O
of	O
TeXnicCenter	B-Language
or	O
Kile	B-Language
,	O
which	O
he	O
described	O
as	O
intimidating	O
for	O
new	O
users	O
.	O
</s>
<s>
TeXworks	B-Operating_System
requires	O
a	O
TeX	B-Application
installation	O
:	O
TeX	B-General_Concept
Live	I-General_Concept
,	O
MiKTeX	B-General_Concept
,	O
or	O
MacTeX	B-General_Concept
.	O
</s>
<s>
MiKTeX	B-General_Concept
2.8	O
(	O
and	O
2.9	O
)	O
comes	O
bundled	O
with	O
TeXworks	B-Operating_System
,	O
even	O
in	O
the	O
base	O
installation	O
.	O
</s>
<s>
One	O
limitation	O
of	O
TeXworks	B-Operating_System
is	O
,	O
that	O
it	O
does	O
not	O
by	O
itself	O
support	O
multi-stage	O
typesetting	O
,	O
like	O
,	O
for	O
example	O
,	O
PNG	O
or	O
SVG	O
output	O
via	O
intermediate	O
DVI	B-Application
.	O
</s>
<s>
The	O
user	O
has	O
to	O
write	O
a	O
shell	O
or	O
batch	O
script	O
to	O
use	O
such	O
workflows	O
with	O
TeXworks	B-Operating_System
.	O
</s>
