>> > Is this a problem because of the old Adobe version, or the used fonts?
>> > If
>> > the latter, which fonts should I use to circumvent this problem?
>> >
>> > At the moment I am using:
>> >     \usetypescript[helvetica]
>> >     \setupbodyfont[helvetica]
>> > because they did not like the default font.
>> It's simple: the host where the adobe pro is run has not the fonts.
>> So the host must install these fonts --- they have a permissive
>> license and they come with the minimals too.
>> This will be true whatever version of Acrobat Pro  you will use, even X.
>
> I did not think it had to do with 8, but it is never wrong to ask.
>
> Maybe a dump question, but how do I install the fonts? Or how do I determine
> a font that is installed with ConTeXt and Adobe? They have about 700 fonts.
> So maybe there is an usable font that both systems have.

The font with the minimals are inside the minimals and they can be
query with mtxrun.
They are independent and separated from the system.
The same for texlive.

Windows and MacOS have they way to install/query system fonts.
Usually one install a font from context into the system fonts as an
ordinary font, at least under Windows.