This is a heads-up for people trying to do this. It is not working. The installer exits with an error. This is on an upgraded MacBook Pro without previous Adobe installation components installed.
I must say I'm rather disappointed (but not surprised - considering Adobe's track record) this doesn't even work correctly. As a bonus I tried a separate install of the newest Photoshop and that resulted in a similar error too with no software being installed.
Seems like Adobe doesn't test these things. There is also little/no information available regarding High Sierra and Adobe. For such pricy software one would think they could at least made it look like they made an effort, but no. One wonders what the Adobe developers are working on. Seems like the powers-that-be are steering them away from creating great quality products.
I'm too lazy to do the legwork for Adobe. They can easily check these issues themselves. I pay them enough...
Fix it already Adobe!