Printing to PDF creates document with only part of the printout, improperly sized

I am printing from a windows application with my Adobe Acrobat Standard 10.1.9, and when it prints (to a standard Portrait size document), only about 25% of the document appears in the PDF, as if I had told it to zoom in on the document.

I want the PDF to comtain the complete document, fit to one portrait sized sheet of paper.  I want this to be the default behavior.

Help!