In Microsoft Word 2007, it is on the Page Layout tab.
On the Layout tab, you can set the header and footer margins. In Microsoft Word 2003, it is under File - Page Setup, and on the Margins tab you can set the regular margins. So if the documents that you write for work or school require margin settings that are different than the ones chosen by Microsoft, you can change them following the steps outlined below. We have previously written about changing the default page orientation in Word 2010, but you can also change the default margins. It is particularly helpful when the defaults for your activities at work differ from the defaults defined by the manufacturer of the program. Changing default settings in programs that you use a lot can be a great way to save time and avoid mistakes.
