How to insert page number on every page of a document?

We can insert page number on every page of a document by using Footer feature of MS Word. There are two ways to add page numbers to a document:

1. Click the Page Number button in the Header & Footer group on the Design tab and choose the Bottom of Page option from the drop-down list.
2. Select the Format Page Numbers option from the drop-down list. Select the required format from the Page Number Format dialog box. Click on OK.