Using Adobe Acrobat DC v2018.011.20058 on Windows 10. When I open a file in the pdf, then minimize it, any new pdf I open, opens in a new tab in that same pdf. I cannot find a way to open a new pdf in its own window. This is annoying, because if I close the pdf, it asks me if I want to close both tabs (like a browser), and I have to say no or x out of the new file. Or, I can directly click on the tab. Either way, it is very annoying.