“Nothing is more frustrating than needing to change something very simple only to find yourself waste precious time figuring out where to find it or how to do it. If you want to insert page numbers into your OpenOffice Writer document you came to the right place. I’ll be using OpenOffice 3.0 RC1 to explain page numbering in a few quick steps.
First turn footers on by clicking Format — Page and select the footer tab.
Click on the “footer on” check box.
Now that the footer has been inserted at the bottom of the page click inside the footer.
Click on Insert — Fields — Page Number
Finished! Page numbers will be added to every page you create now.”beginlinux.wordpress.com