Another weird email… Am I getting more than normal??

Typed about 200 pages of text. Due to an addition of information, I need to remove these page numbers and re-assign new numbers. However, the page numbers are in a shaded or gray color, and I am finding it imposible to remove them. Any help would be appreciated. Thank you.

I’m starting to think that maybe everyone in the world thinks I know everything about everything, because I have no clue who this person is, and I certainly don’t have anything to do with laying out pages.