printing a PDF file, immediately after you click the print command
in Acrobat Reader, a Print Page comes up. On that page there
is a section called "Copies and Adjustments." Under Copies and
Adjustments, make sure the box called "Shrink oversized pages
to paper size" is NOT checked.
(If this box is checked, the printed
document will have margins that are slightly too wide, and the
print size in the document will be smaller and harder to read.)