L for landscape, P for portrait and A for auto-detect. Auto-detect sets landscape, the default PowerPoint orientation
default='L'
The type of resize to be performed. Autofit automatically fits the visualization, sheet or story into the output size (i.e. Widescreen, OnScreen etc.)
default='autofit'
Size of the PowerPoint slide
default='Widescreen'
This value is used for rendered images only, set to a default of 200 dpi
default=200, maximum=1000