Originally Posted by higgs
Has anyone else noticed that when you change font size on an epub book the total page number does not change, however on lrf books when you increase the font size the total page number increases and when you decrease the font size the total page number decreases?
The Sony BBeB renderer counts "pages" in units of "screenfuls of text." ADE counts pages either at specific points in the text specified by a separate "page map" (an Adobe extension to EPUB, although they're trying to get it in the standard spec) or -- more commonly, if there is no page map -- it interprets every 1024 bytes of source-content as a "page." This results in some pretty weird pages (for example, a complex SVG image may cross multiple "pages"), but at least gives consistent page numbers across all screen and font sizes.