It's best to set up the document for the same paper size you're
printing on, and leave the scaling at "No scaling". That way the font
sizes, margins, and other bits will be the same size they were created
for.
The feature is intended for the case where you get a document from
somewhere else and it isn't practical to resize and rearrange
everything in it, but you want to use a different paper size (usually
because that's all you have). For example, if the document was
originally made for Legal (8.5 x 14 inches) and you want to print on
Letter (8.5 x 11 inches) without cutting off the bottom of the page,
you can set the scaling. The entire page image will be reduced to
78.5% of original to make it fit. A side benefit is that the locations
of the page breaks with respect to the text will be the same.
--
Regards,
Jay Freedman
Microsoft Word MVP
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