<s>
gThumb	B-Application
is	O
a	O
free	B-License
and	I-License
open-source	I-License
image	B-Application
viewer	I-Application
and	O
image	B-Application
organizer	I-Application
with	O
options	O
to	O
edit	B-Application
images	I-Application
.	O
</s>
<s>
It	O
is	O
designed	O
to	O
have	O
a	O
clean	O
and	O
simple	O
user	O
interface	O
and	O
follows	O
GNOME	B-Application
HIG	O
,	O
it	O
integrates	O
well	O
with	O
the	O
GNOME	B-Application
desktop	I-Application
environment	I-Application
.	O
</s>
<s>
gThumb	B-Application
allows	O
the	O
filesystem	B-Application
to	O
be	O
browsed	O
for	O
images	O
.	O
</s>
<s>
Via	O
gPhoto	B-Algorithm
it	O
can	O
also	O
acquire	O
data	O
directly	O
from	O
digital	B-Device
cameras	I-Device
.	O
</s>
<s>
gThumb	B-Application
offers	O
a	O
certain	O
range	O
of	O
image	B-Application
editing	I-Application
operations	O
suited	O
for	O
digital	B-Application
photography	I-Application
,	O
such	O
as	O
the	O
change	O
of	O
image	O
hue	O
,	O
saturation	O
,	O
lightness	O
,	O
contrast	O
or	O
the	O
adjustment	O
of	O
colors	O
and	O
sharpness	O
.	O
</s>
<s>
gThumb	B-Application
can	O
export	O
web-based	O
photograph	O
albums	O
with	O
various	O
theme	O
templates	O
.	O
</s>
<s>
gThumb	B-Application
also	O
includes	O
many	O
basic	O
features	O
such	O
as	O
copying	O
,	O
moving	O
,	O
deleting	O
or	O
duplicating	O
images	O
,	O
printing	O
,	O
zooming	O
,	O
format	O
transcoding	B-Algorithm
,	O
and	O
batch	O
renaming	O
.	O
</s>
<s>
gThumb	B-Application
only	O
requires	O
glib	O
(>=	O
2.36.0	O
)	O
,	O
gtk	B-Application
(>=	O
3.16	O
)	O
,	O
gthread	O
,	O
gmodule	O
and	O
gio-unix	O
.	O
</s>
<s>
Libraries	O
that	O
are	O
not	O
mandatory	O
but	O
possible	O
include	O
exiv2	O
,	O
libjpeg	B-Language
,	O
LibTIFF	B-Library
,	O
LibRaw	B-Language
,	O
and	O
JPEG	O
XL	O
's	O
libjxl	O
.	O
</s>
<s>
It	O
was	O
originally	O
based	O
on	O
GQView	B-Language
.	O
</s>
<s>
Starting	O
from	O
version	O
2.12.0	O
gThumb	B-Application
allows	O
users	O
to	O
export	O
images	O
to	O
various	O
websites	O
.	O
</s>
<s>
Version	O
3.0.0	O
is	O
based	O
on	O
GTK	B-Application
version	O
3	O
,	O
and	O
supports	O
high	O
quality	O
SVG	O
zoom	O
.	O
</s>
