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What software are available for reading .mobi, .epub and .pdf files on a Windows 7 PC? (free or paid) Cloud syncing features would be great - to have all my books and annotations synced across several computers.

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closed as off topic by Nifle, Everett, Ƭᴇcʜιᴇ007, Tog, Dave M Feb 18 '13 at 19:06

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Mobipocket Reader Desktop (free)

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Adobe Digital Editions is fairly nice, supports various formats, allows annotations, and can sync changes.

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just installed and it doesn't support mobi. – Brian Boatright Jan 23 '11 at 23:10

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