As 2013 was near its end, several publishers of technical books had blowout sales on their ebook editions. I bought several that had PDF, EPUB and MOBI formats. PDF is the standard Acrobat format. EPUB is the standard that Apple and most other ebook mongers prefer. MOBI is the ebook format preferred by Amazon.
All three formats contain pretty much identical formatted text, but the sizes of the files are annoyingly different. For example, here are two of the books I bought: The LaTeX Companion PDF 18.6 MB EPUB 128 MB MOBI 242 MB Numerical Recipes: The Art of Scientific Computing PDF 20.4 MB EPUB 119 MB MOBI 254 MB There is little visible difference between the EPUB and MOBI formats on an iPad. PDF looks a lot better, but doesn't flow to the screen size, as do the other formats, so I find myself panning and zooming to read small text like complicated exponents, subscripts and footnotes. I've been thinking of getting a Kindle as a second ebook reader for the home. Which Kindles allow you to easily read unconverted PDF and EPUB formats? With PDF, how easy is the pan and zoom?
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