As above some form of AI client with clear instructions of what you want it to do.
This was the result
Except the AI company now has a copy of the original photo to use as they please.
No offence intended but that looks pretty poor to me. Gemini needs a good talking to. Sorry.
Not always. I use an AI client that can be restricted to just use local sources.
Well yeah, if it runs on your PC and does not send anything to the Internet.
Some have settings that allow or deny improving their model. Best kept turned to deny.