Evernote import issue that separates EN notes into DT separate files

Just open the note and the attachment(s) in different windows. If you don’t like having too many windows open at the same time, have a try at my script for a two-window workflow.

I have separate databases for my notes and reference materials. If I need to associate, for instance, a markdown note with a PDF, I add an item link to the PDF in the note. Backlinks are shown in the Inspectors > Links panel.