I've been working on a 5-page EPUB portfolio piece for the last two weeks while learning INDESIGN in an online tutorial. Frustrating, since there's no one I can go to when I encounter problems not covered in the tutorials. Right now, I'm trying to figure out a way to reduce the file size of this fixed layout EPUB. Currently, it's more than 70MB. There are slides shows on each page, and the total number of images is fairly high -- nearly 50, not including the smaller cropped images that I'm using for the navigation buttons. All of the images except one are JPEGs. While they are 300 dpi, they're reduced to a physical size that is very close the size they're used in the INDD file. Even if I export to EPUB with the image options set at 72 dpi and medium quality, the EPUB that is generated is still HUGE. What am I missing here? Or is this how large EPUB have to be? I am fresh meat for this application.
