<s>
PDF	B-Application
Expert	I-Application
is	O
a	O
PDF	B-Application
editing	O
app	B-Application
for	O
iPhone	B-Device
,	O
iPad	B-Device
and	O
Mac	B-Application
.	O
</s>
<s>
The	O
app	B-Application
allows	O
a	O
user	O
to	O
read	O
,	O
annotate	O
and	O
edit	O
PDFs	B-Application
,	O
change	O
text	O
and	O
images	O
,	O
fill	O
in	O
forms	O
and	O
sign	O
contracts	O
.	O
</s>
<s>
PDF	B-Application
Expert	I-Application
was	O
initially	O
launched	O
for	O
iOS	B-Application
in	O
2010	O
for	O
the	O
first	O
iPad	B-Device
and	O
is	O
now	O
supported	O
on	O
the	O
iPad	B-Device
,	O
iPhone	B-Device
,	O
and	O
Mac	B-Application
.	O
</s>
