How to Create a PDF Presentation with the Adobe Output Manager
In the Document section, choose an appropriate size.
Choose one of the web presets, rather than a paper size. Adobe Reader can scale the presentation, so 800x600 pixels is a good choice unless you know the presentation will always be played back on a larger monitor. Choose your background color (black is an excellent choice) and determine whether you want to require a password to open the document or to make the presentation non-printable.