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Perhaps using the Fit To Page option, with Landscape printing chosen in both the program's printing options as well as chosen in the printer driver's options, might serve your purpose.
Landscape printing, as an option, is usually to be found in the Windows printer driver:
Start - Control Panel - Devices and Printers,
right-click on the printer's icon there, select Properties, and then look in the printer's Properties sheet(s) for the 'Landscape' (versus 'Portrait') option.