With Adobe’s current shift to the Creative Cloud (CC) subscription model, many users feel left behind. They miss the "perpetual license"—the idea of buying a tool once and owning it forever. This is where the Internet Archive (Archive.org) enters the conversation.
If you have a legitimate serial number and manage to download a clean installer:
Adobe Photoshop CS6 is a highly sought-after version of the software because it was the last major release available as a perpetual license before Adobe transitioned to the Creative Cloud subscription model. Finding it on Archive.org
Go to archive.org and search for exactly: "Adobe Photoshop CS6" ISO .