Duplicate pictures in Research and Drafts...

Can I delete a picture in the Research folder once I’ve dragged it over onto a Draft page? Or will it disappear from both if I do so?

I’m using a lot of pictorial references, and my Research folder is getting rather … hefty … be great if I could trim it down, but don’t want to risk deleting if it’ll also vanish from my work.
I attempted to find an answer, but every returned search seemed to focus on entirely deleting the Research folder (which, of course, I neither want to do and understand is impossible, anyway).

Thankyou in advance.