Step 2: Unzip the file, open Photoshop_13_LS4.dmg file and click on Adobe Photoshop CS6 Step 3: In the next window, click on install.app Step 4: Right click on install.app and choose Show Package Contents Step 5: Head to Contents -> MacOS -> install. Steps to Install Adobe Photoshop CS6 on Mac Step 1: Disconnect your Mac with the internet. Frequently Asked Questions How do i install adobe photoshop cs6?