Open PDF in Safari to maintain drill through rather than download on MAC

[le_lane]

We have drill through reports that render as PDFs and you can successfully drill through in IE.

However in Safari, Safari does an auto download and saves the PDF rather than displaying in it a browser so that the user can do the drillthrough.

Question 1 - Can I force Safari on MAC platform to auto open in the browser and maintain the integrity for the drill down?

Question 2 - Can I save the pdf, and then have that pdf be 'smart enough' to ask for a login and complete the drill down?

Thanks in advance.

Louise