To Create Custom Margins:
- Choose Page Layout tab on the Ribbon. Under Page Layout, choose Margins. A Margin Gallery will appear.
- Choose Custom Margins on bottom of the Margin Gallery. A Page Setup dialog box will appear.
- Use the spin arrows to increase/ decrease your margin settings for the top, bottom, left, and/or right margins of your document. You may also type your exact margin measurements in the box.
- Apply these measurements to the entire document or from this starting point.
- Choose OK to apply the margin settings to your document.