Actually, I discovered a workaround. You can drag-and-drop the selected page thumbnails to the Desktop. This creates a new PDF document. You can then drag-and-drop that document into a notebook within Evernote. It works, but it adds several additional steps including the need to then delete the temporary document. Is there an easier way?
A very common workflow for me was to open a large PDF in Preview (on the Mac) and then to select a set of page thumbnails within Preview and drag-and-drop them into Evernote. Evernote no longer seems to support this feature. Is that by design? Am I missing something? Is there a work-around?