With a recent project I needed to design a mock-up for the customer in Photoshop. I was planning on using Font Awesome and Google Font Orbitron. I used this tutorial to show me how to download and install a Google Font on my machine so I can use it in Photoshop.
For adding Font Awesome I followed the instructions presented by OSTraining
https://www.ostraining.com/blog/webdesign/fontawesome-psd/
I hope this helps someone else out there…