<s>
Adobe	B-Language
Digital	I-Language
Editions	I-Language
(	O
abbreviated	O
ADE	O
)	O
is	O
an	O
e-book	O
reader	O
software	O
program	O
from	O
Adobe	O
Systems	O
,	O
built	O
initially	O
(	O
1.x	O
version	O
)	O
using	O
Adobe	B-Operating_System
Flash	I-Operating_System
.	O
</s>
<s>
The	O
software	O
supports	O
EPUB	O
and	O
PDF	B-Application
(	O
nonproprietary	O
file	O
format	O
for	O
reflowable	O
text	O
,	O
or	O
fixed	O
layout	O
e-books	O
;	O
respectively	O
)	O
.	O
</s>
<s>
It	O
implements	O
a	O
proprietary	O
scheme	O
of	O
digital	O
rights	O
management	O
(	O
DRM	O
)	O
which	O
,	O
since	O
the	O
version	O
1.5	O
release	O
in	O
May	O
2008	O
,	O
allows	O
document	O
sharing	O
among	O
multiple	O
devices	O
and	O
user	O
authentication	O
via	O
an	O
Adobe	B-Language
ID	I-Language
.	O
</s>
<s>
Digital	B-Language
Editions	I-Language
is	O
a	O
successor	O
to	O
the	O
Acrobat	O
eBook	O
Reader	O
application	O
.	O
</s>
<s>
Windows	B-Application
and	O
Mac	B-Application
OS	I-Application
X	O
versions	O
of	O
Adobe	B-Language
Digital	I-Language
Editions	I-Language
were	O
released	O
on	O
19	O
June	O
2007	O
.	O
</s>
<s>
The	O
current	O
Apple	O
iOS	B-Application
version	O
of	O
the	O
app	O
has	O
a	O
one	O
star	O
and	O
two	O
star	O
rating	O
.	O
</s>
<s>
Previous	O
versions	O
of	O
the	O
software	O
required	O
version	O
9.0	O
of	O
Adobe	B-Operating_System
Flash	I-Operating_System
Player	I-Operating_System
.	O
</s>
<s>
Starting	O
with	O
version	O
2.0	O
,	O
however	O
,	O
which	O
relies	O
on	O
.NET	B-Application
Framework	I-Application
3.5	O
on	O
Windows	B-Application
,	O
Flash	B-Operating_System
Player	I-Operating_System
is	O
no	O
longer	O
supported	O
.	O
</s>
<s>
Adobe	O
initiated	O
development	O
of	O
a	O
Linux	B-Application
version	O
of	O
ADE	O
in	O
2007	O
;	O
however	O
,	O
this	O
has	O
not	O
had	O
any	O
beta	O
release	O
or	O
any	O
formal	O
updates	O
.	O
</s>
<s>
Adobe	B-Language
Digital	I-Language
Editions	I-Language
uses	O
the	O
proprietary	O
ADEPT	O
(	O
Adobe	O
Digital	O
Experience	O
Protection	O
Technology	O
)	O
digital	O
rights	O
management	O
scheme	O
,	O
which	O
is	O
also	O
implemented	O
on	O
some	O
e-book	O
readers	O
,	O
including	O
iPads	B-Device
and	O
many	O
Android	B-Application
devices	O
,	O
but	O
not	O
Kindles	O
.	O
</s>
<s>
When	O
viewing	O
an	O
e-book	O
,	O
Adobe	B-Language
Digital	I-Language
Editions	I-Language
by	O
default	O
stores	O
the	O
e-book	O
locally	O
as	O
PDF	B-Application
files	I-Application
on	O
Windows	B-Application
machines	O
.	O
</s>
<s>
These	O
files	O
can	O
be	O
copied	O
and	O
handled	O
like	O
other	O
files	O
,	O
but	O
they	O
cannot	O
be	O
opened	O
except	O
with	O
Adobe	B-Language
Digital	I-Language
Editions	I-Language
.	O
</s>
<s>
On	O
6	O
October	O
2014	O
,	O
Nate	O
Hoffelder	O
reported	O
in	O
The	O
Digital	O
Reader	O
that	O
Adobe	B-Language
Digital	I-Language
Editions	I-Language
version	O
4	O
(	O
"	O
ADE4	O
"	O
)	O
was	O
sending	O
extensive	O
information	O
about	O
e-books	O
back	O
to	O
Adobe	O
,	O
including	O
e-books	O
read	O
by	O
a	O
user	O
as	O
well	O
as	O
e-books	O
stored	O
on	O
the	O
same	O
machine	O
but	O
not	O
opened	O
in	O
ADE4	O
.	O
</s>
<s>
User	O
privacy	O
is	O
very	O
important	O
to	O
Adobe	O
,	O
and	O
all	O
data	O
collection	O
in	O
Adobe	B-Language
Digital	I-Language
Editions	I-Language
is	O
in	O
line	O
with	O
the	O
end	O
user	O
license	O
agreement	O
and	O
the	O
Adobe	O
Privacy	O
Policy.	O
"	O
</s>
<s>
In	O
October	O
2014	O
,	O
Adobe	O
released	O
version	O
4.0.1	O
of	O
the	O
software	O
,	O
which	O
sends	O
data	O
to	O
Adobe	O
in	O
a	O
secure	O
transmission	O
(	O
using	O
HTTPS	B-Protocol
)	O
.	O
</s>
