You can use "Mirror margins" and either increase one margin or add a gutter,
but the extra space will be added to the Inside or Outside (that is,
alternate sides of odd and even pages). For a different approach, see the
"More complex letterhead" section of
http://sbarnhill.mvps.org/WordFAQs/Letterhead.htm, which describes how to
use a frame or text box anchored to the header to create an artificial
margin.

--
Suzanne S. Barnhill
Microsoft MVP (Word)
Words into Type
Fairhope, Alabama USA
Word MVP FAQ site: http://word.mvps.org
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"mariet" wrote in message
...
I have a document 100 pages in length. I wish to change the formatting of
all the even numbered pages, so that they are indented slightly further
than
the odd ones.

Is there an automatic way of doing this without having to manually change
every even page?
Thanks.