<s>
Nitro	B-Language
PDF	I-Language
Pro	O
is	O
an	O
application	O
used	O
to	O
create	O
and	O
edit	O
Portable	B-Application
Document	I-Application
Format	I-Application
(	O
PDF	B-Application
)	O
files	O
and	O
digital	O
documents	O
.	O
</s>
<s>
Nitro	O
Software	O
was	O
founded	O
in	O
Melbourne	O
,	O
Australia	O
,	O
by	O
a	O
team	O
of	O
three	O
,	O
as	O
an	O
alternative	O
PDF	B-Language
software	I-Language
to	O
Adobe	O
Acrobat	O
.	O
</s>
<s>
In	O
2018	O
,	O
Nitro	B-Language
PDF	I-Language
Pro	O
was	O
used	O
by	O
more	O
than	O
650,000	O
businesses	O
.	O
</s>
<s>
In	O
June	O
2021	O
,	O
the	O
company	O
purchased	O
PDFPen	O
,	O
a	O
Mac	O
,	O
iPad	O
,	O
and	O
iPhone	O
PDF	B-Application
editing	O
app	O
.	O
</s>
<s>
Products	O
include	O
a	O
PDF	B-Language
editor	I-Language
,	O
a	O
browser-based	O
application	O
for	O
electronic	O
signatures	O
and	O
PDF	B-Application
productivity	O
tools	O
.	O
</s>
<s>
The	O
company	O
sunset	O
their	O
PDF	B-Language
reader	I-Language
,	O
Nitro	B-Language
Reader	I-Language
,	O
in	O
2017	O
.	O
</s>
<s>
It	O
was	O
claimed	O
that	O
"	O
users	O
can	O
get	O
the	O
same	O
functionality	O
with	O
an	O
expired	O
free	O
trial	O
of	O
Nitro	B-Language
PDF	I-Language
Pro	O
"	O
.	O
</s>
<s>
Nitro	B-Language
PDF	I-Language
Pro	O
is	O
proprietary	B-Application
trialware	O
,	O
while	O
Nitro	B-Language
Reader	I-Language
is	O
freeware	B-License
for	O
both	O
personal	O
and	O
professional	O
use	O
.	O
</s>
