EBooks do not preserve formatting in the same way as print books. This is because eBooks are designed to be reflowable documents, adapting to various eReaders and individual reader settings. Unlike print books, ePub page numbers do not correspond to traditional page numbers. They vary depending on the device and its settings. For instance, if a reader sets a large font size, it will result in more 'pages' than the average.
On platforms like Amazon, an absolute position system called 'locations' is utilized. These location markers are considerably smaller than standard page numbers. Consequently, each 'page' often represents a range of numbers rather than a fixed value. It is important to note that these locations or page numbers are determined by Amazon or the eReader software and are not programmed into the eBook file itself.