Export invoice to PDF is switching from portrait to landscape

[ricklesguard-garbage at yahoo.com]

If I am viewing my invoice on the screen and export to PDF, the invoice is
exported landscape. If I make the window smaller in width, the invoice
exports as portrait which is what I would want as a default. 

 

Is there a way to set this as a preference so I don't have to remember to
make the view narrow before I export?

 

Rick