FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -A header is text that is placed at the top of a page, while a footer is placed at the bottom, or foot, of a page. Typically these areas are used for inserting document information, such as the name of the document, the chapter heading, page numbers, creation date and the like.

Detailed explanation-2: -If you’re reading a document, not writing or major editing, click or tap View > Read Mode to hide the writing tools and menus and to leave more room for the pages themselves. Read Mode automatically fits the page layout to your device, using columns and larger font sizes, both of which you can adjust.