Hi. With Evernote on my mac, I open a PDF in an external editor (Skim), make highlights, save the file. When I open the file again from Evernote, I find that the file is the original version. I want to start using Evernote to take all my academic notes and store the PDF's (course notes and articles) along side my notes. It would completely break my workflow to have to re-insert the PDF into a new note every single time I 'open with'. I must be missing something here. People on the forum seem to think it's an Android problem but I don't think it is since it is also not working on a mac. Maybe I could figure this out if I could find where Evernote saves attachments. I notice that Evernote creates a backup of my attachment every time I open it, but no matter where I save the updated file, EN does not accept it. Can anyone help?