He always provides genuine keys and I am 100% sure that you can activate it with it.
I have not tested his key, because I haven't wanted to decrease the activation count only for my stupid test.
4. In the next step you will be asked for the key. Open the keygen and do not close it until the whole activation process will be finished. Add the key from keygen to the setup window like into the screenshot. Then click on next.
13. In the next window: We will back to the keygen again and we will copy the Activation Number from setup window into the keygen to the empty field. Then we will click on Activate, the keygen will provide the authorization code that must be added into the setup window. See the screenshot. Then click on Activate.
I installed it two times in VM with Windows 7 and on a real machine with Windows 10 1809. ( LOL - Guess I am still dreaming: I have installed Adobe Acrobat 8 from 2007 on Windows 10 Enterprise LTSC from 2018 ? )
What I have found about this issue, (Google "by pass the e-license requirement acrobat 8")
1. is suggesting to switch to ver.8.1 where e-licence was removed, take it from here
(BTW, I see there licensing_service_patch.zip, ? maybe it s related too)
Then a complex procedure as described here.
Maybe some may wonder why I am using such an old version. The answer is that I installed it in a friend computer with Windows Vista. The PDF file that I modified earlier with other PDF writer file did not have the needed properties to showed it correctly in a web page when saved, unless opened it with Adobe Acrobat.