Take a look here
Can I use Photoshop Elements on more than one machine?
You can install Photoshop Elements on two computers, but you can only use one copy of the software at a time. If your computer crashes or you switch to using a different computer, you can reinstall the product without having to contact Adobe Customer Support.
Hi. Thanks for the clear information - I've been looking into this and there have been a lot of conflicting viewpoints until now. To be sure I understand correctly.... if I want to buy the Elements 2020 products to use independently on two separate laptops within my family, I either need to have one license and ensure it is never in use at the same time on both machines - or buy two separate licenses for total freedom of use? Many thanks for your help.
Also, they must both be YOUR PERSONAL Mac for your PERSONAL use. You can't for example do this in an office or family setting with shared computers. You can't use this to share software with friends, colleagues, students, staff or family.
How does the application know whether they are at the same time? ie. if I am offline?
Adobe keep the details of how licensing works and is checked, and what happens if you don't follow the rules, a secret. It's up to you to follow the rules.
so if i purchased adobe photoshop essentials through the microsoft website and i want to install it on my gfs PC, how do i do that? Do i need to add her device to my user profile? Do i need to send her a link where she can install it?
The software is only for your own use, not for sharing with friends, family, colleagues, partners, paritioners, students...