Is there a way to open files in the default external pdf reader rather than the integrated reader?
Something a little bit easier than "show file" and "open"?
that warning would also have to be present when Zotero is set top open the PDF externally by default?
there are no Zotero annotations that would get out of sync if you alter pages.
I would just add a warning to the GitHub readme that modifying PDFs outside of Zotero (e.g., deleting, moving, or rotating pages) may result in inconsistencies with Zotero-created annotations.
I see the right-click menu now, but it doesn't open the external viewer