Thank you borisb for your reply. How should I connect the edge with ethernet? with a rj-45?

another possibility, that in the end possibly is the easiest one, is not to unplug the usb, but simply go to the dropdown menu in the edge and unmount every time I want to read pdfs, and mount them once I want to transfer files from the pc into the edge.

Possibly this is the easiest and fastest way, without the need to physically connect/disconnect things. Do you agree?