You can copy and paste them to maintain style and position, etc. Putting a page number placeholder on the Slide Master does not automatically add one on the Layouts. This is accomplished by selecting Insert>Header & Footer and checking the Slide Number box. It is necessary to put a placeholder on each, and they must be formatted identically, and in the same position (or else they will appear to “jump” as you move from slide to slide). The standard page numbers in PPT 2010 are typically placed on the Slide Master and all of the subsequent Layouts. This will also make them inaccessible locally on the slides, more like it was in PPT 2003, so you can avoid any accidents. In this article we are going to show you how to put a page number on the Slide Master and eliminate the need to put one on each Layout. In some cases the new approach is desirable, but not always – the drawback is that they can now be easily moved or removed accidentally.
The main difference being that the newer versions allow the page numbers to be modified on the individual slides, where in PPT 2003 they were only editable on the slide master. When PowerPoint 2007 was released, one of the changes from PPT 2003 was how footers and page numbers are handled.
