Want to close only selected PDF's in Preview
Big Sur 11.6. When I open more than one PDF, and I close one, they all close. That didn't happen in previous versions. Sometimes I need to look at one PDF to copy information for another. Then I don't need all of those extra files open, but I'm frustrated that when I close them it also closes the two that I am working on. Please help. Thanks in advance!
MacBook Pro 13″, macOS 10.12