calibre - Ebook manager, viewer & converter
Wondershare PDFelement - All-in-one PDF editor
Adobe Digital Editions - ebook reader software
Foxit PhantomPDF - Edit PDF files with our feature-rich PDF Editor. Download Foxit PDF Editor to convert, sign, scan / OCR & more. A speedy PDF Editor alternative to Adobe Acrobat.
Calibre Web - Calibre Web is a web app providing a clean interface for browsing, reading and downloading eBooks...
Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.