Google Docs now has a full-screen mode that hides the menus and the toolbar to provide you more space to edit your documents. Just select View —> Full-screen mode or type Ctrl-Shift-F to go into full-screen mode. Since you no longer have access to the menus, it's useful to know the keyboard shortcuts and to remember that Esc brings you back to the normal mode.
If you publish a document and you want to display it in fixed-with page view, just append &pageview=1 to the URL:
To hide the footer automatically added by Google, append &hgd=1 to the URL:
Source:→ Google System