[TheDreadedWoodenSpoon]

Great question!
In Word 2013, go to File/Options/Advanced. Scroll down to Show Document Content. Uncheck Show crop marks.

Originally Posted by Elizabeth S.

Hello,

I am attempting to email an important document. I have these L-shaped
lines in each of the four corners. They appear to be the same lines that are
in preview box when you try to add a border.

Can you tell me how to adjust the settings so that they do not appear when
an person views the documents?

THANKS!!