title: Word 2016 Add-in: detect document Save
body: <p>I'm developing a Word 2016 Add-in (Word API + Office.js) and I'm wondering if it's possible to get notified when the user is about to save the document.</p>
  
  <p>The document is stored as a LOB on application's database, extracted on a temporary path and opened as a normal file in Word. I need to create a custom handler for Save or Save As command, in order to programmatically update the database with a fresh copy of the document.</p>
  
  <p>Do you think that Word API has a way to set custom handlers on Save and other user events? 
  Thanks!</p>