In my case the user has to approve or disapprove the pdf document. If he approves it, the viewModel is marked as such, and another user will download the approved document and send it to the bank or shipping company.
Most of the time the approver is on his phone and doesn’t want to go to the office to download to his PC.
I agree it’s not an ideal situation, and it would be much better if I could force the approver to download the document.
I’m still struggling with displaying a pdf on mobile. As soon as I get a chance I will look at pdf.js