Page breaks, as the name implies, are separate pages from the symbol, so that you can better edit different pages. If you want to have the flexibility to set the page format, it's not that simple, first find a page break in Word2010, and then insert it.
Word2010
Method One
Open the Word2010 document and move the cursor to the target location.
Open the Page Layout tab.
In Page setup, click the Separator button.
In the Separator list, select the page break option.
Method Two
Open the WORD2010 document window and move the cursor to the target location.
Click the Insert tab.
You can insert page break marks at the cursor position by clicking the page Breaks button in pages.
Small series summed up two ways to insert page breaks in Word documents, after separating the page, how to set the page format, it is your own business, everyone began to move up.