FAMe is available in pdf, (x)html, and epub formats. Each format has advantages and disadvantages:
is the best format for printing. The pdf layout is fixed. FAMe can control both fonts and the placement of material. Pdf is not bad online, either, with very high-quality font rasterization on all platforms. However, it cannot re-flow the text according to the reader's font-size preference and viewing device. If you want to view a pdf page that is twice as wide, you need a canvas that is twice as wide.
is the best format for on-line viewing on a high-speed-internet-connected computer. It is usually easy to change the browser font-size (using ctrl-minus or ctrl-plus) with a concomitant re-flow of the document. Unfortunately, the most common tablet web browsers (like Safari on iOS, Chrome on Android, and Internet Explorer on Windows-8) make font-size changes difficult. Pinching html text in tablets usually zooms into the document (just as it does in a pdf file), instead of re-flowing the text.
contains the LATEX-dialect source from which all of the above have been created. This is of interest only to connoisseurs of typesetting systems.