If you put Headers and Footers in your book, like a “running header," which only means that you have the author name on the top of the left-hand-page and the title on the right, or the other way around, we remove them.  Ebooks don't have headers that are contained inside the book.  Some eBook devices do create these in the devices themselves, but they do it by using invisible information that we embed inside the book.  It's not like a print book, where it's typed at the top or bottom of every page.  

eBooks also do not have "page numbers," in the traditional sense.  Some readers, like Nook, will create a "faux" page number (every 1,000 characters), to give the reader a sense of how far along s/he is in the book, while Kindle devices provide a "location number." But the type of page numbers you are accustomed to, from a print book, are not used in eBooks, and are not created by the conversion company.  If you have used built-in page numbering in your manuscript, it will be removed.  If you've typed page numbers by hand, all of those will also have to be removed, either by you or your conversion company. 

If you put Headers and Footers in your book, like a “running header," which only means that you have the author name on the top of the left-hand-page and the title on the right, or the other way around, we remove them.  Ebooks don't have headers that are contained inside the book.  Some eBook devices do create these in the devices themselves, but they do it by using invisible information that we embed inside the book.  It's not like a print book, where it's typed at the top or bottom of every page.  

eBooks also do not have "page numbers," in the traditional sense.  Some readers, like Nook, will create a "faux" page number (every 1,000 characters), to give the reader a sense of how far along s/he is in the book, while Kindle devices provide a "location number." But the type of page numbers you are accustomed to, from a print book, are not used in eBooks, and are not created by the conversion company.  If you have used built-in page numbering in your manuscript, it will be removed.  If you've typed page numbers by hand, all of those will also have to be removed, either by you or your conversion company.