Document.PrintFitOnPages Property (Visio)
Indicates whether drawings in a document are printed on a specified number of sheets across and down. Read/write.
The PrintFitOnPages property corresponds to the Fit to settings in the Page Setup dialog box (on the Design tab, click the arrow in the Page Setup group). If this property is True, Microsoft Visio prints the document's drawings on the number of sheets specified by the PrintPagesAcross and PrintPagesDown properties.