I know this kind of defeats the purpose of the mobile app, but had two requests to have the ability to print an .idw from the app. Not sure this is possible.
One example of reasoning....they were assembling a machine in production and had to send one of the gophers to the warehouse to get a missing piece of hardware. They wanted to print off a drawing so that he actually got what they needed.
Here is the discussion feed on this topic..
https://forums.autodesk.com/t5/vault-mobile-forum/ability-to-print-drawing-from-app/m-p/9753316#M78
Best,
Steve H.
