+ """
+ Determines how the page will fit in the current view.
+ viewMode possible values:
+
+ ======== ==============================================
+ 'Fit' fits whole page within the window both vertically
+ and horizontally.
+ 'FitH' fits the width of the page within the window.
+ 'FitV' fits the height of the page within the window.
+ 'FitB' fits bounding box within the window both vertically
+ and horizontally.
+ 'FitBH' fits the width of the bounding box within the window.
+ 'FitBV' fits the height of the bounding box within the window.
+ ======== ==============================================
+ """