Is Photoshop CS6 returned legal?

Thank you guys for all these suggestions! I've been using now CS4 which I like very much but I thought of a little update on the occasion of changing the computer. CS6 I mentioned costs ca $200 so I thought it might be legal. As I see it's rather not. I will report this offer to Adobe - they should take more care about this kind of offers.

"Is it possible to return this software and resell it?'

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No. Put it in the recycle bin.  Nobody will buy obsolete, discontinued & unsupported software that won't install much less run on modern equipment.  Decade-old software is no bargain at any price.  Sorry.

MODERN OPTIONS:
Photoshop Elements (no subscription needed).
https://www.adobe.com/products/photoshop-elements.html

Creative Cloud Photography Plan (approx $10/month for 12 months). Includes the following:

• Photoshop CC and Photoshop on iPad
• Camera Raw
• Lightroom on desktop, mobile and the web
• Lightroom Classic
• Portfolio website + hosting
• Adobe Express (free starter plan)
• Bridge
• 20 GB cloud storage (upgradable to 1 TB).
• Free upgrades for paid subscribers

https://www.adobe.com/creativecloud/photography.html

Premium Adobe Express ($10/month).

• Adobe Express app (web and mobile)
• Premiere Rush (vide editor for desktop and mobile)
• Photoshop Express (mobile)
• Spark Video (mobile)
• Spark Page (mobile)
• Adobe Portfolio + hosting
• 100 GB of cloud storage
• All premium templates and design assets including the collection of over 160 million royalty-free Adobe Stock photo collection.

https://helpx.adobe.com/express/using/express-overview.html

Creative Cloud All Apps (51 + apps & services) and Single App Plans
https://www.adobe.com/creativecloud/plans.html

It's illegal, period, end of.

CS6 hasn't been legally available in any shape or form for many, many years. Illegal pirated copies have been flooding the internet for as many years.

This isn't a probability, it's a certainty.

Photoshop today is a great bargain at about $10 month - actually $120/year. When Photoshop CS6 was sold it was around $700. That's six years of subscription!

Forget this, spend the money on Photoshop Elements which will likely be less money, modern version and will be legal. 

https://www.adobe.com/products/photoshop-elements/buy-elements.html?utm_campaign=cv-nwmp-ae2023&utm_medium=cpc&utm_source=google&utm_content=AE2023-RSA02-LP1&utm_term=adobe%20photoshop%20elements%20photoshop&gclid=CjwKCAiAhqCdBhB0EiwAH8M_Gh401my92P3hTrRxQzJQZu-uT-yNjDnwntTXCJ-vvT-auRYZmFsw7hoCZ9cQAvD_BwE