Online Ebook ConverterAdobe Digital Editions offers an engaging way to view and manage eBooks and other digital publications. Cometdocs is a free online document and e-book conversion tool that has on the fly OCR conversion capabilities, over 50 different conversion options and proprietary XPS and PDF conversion abilities that retains formatting, images and text in the selected output format.
I don't have Microsoft Word, I use Libre Office in a PC and Open Office in a MAc and I've just needed to translate some word kind of lenghty documents to website ePub in order to read them while away from my computer, and found that the LIbre Office export to html very clean and efficient to use inside Sigil.
Another free and easy to use online ePUB converter is Zamzar Zamzar converts thousand of file formats, not just ePUB files, however, the free Zamzar service provides basic e-book file conversions and doesn't provide any options to customize the output file.
At least the following e-book readers understand the epub format: Apple iPad, Barnes and Noble Nook, Sony Reader, BeBook, Adobe Digital Editions, Lexcycle Stanza, BookGlutton, AZARDI, Aldiko, WordPlayer on Android and the Mozilla Firefox add-on OpenBerg Lector.
This is the primary format for most current Amazon Kindle devices, but they can also read the other formats. It's very attractive; I didn't get a chance to try out the ebook-export function because in order to do that I'd have had to pay — $29 for a one-book license, $99 for ten books, and $199 for the unlimited license.
Plucker Desktop - Free, open source, cross-platform application to "pluck" HTML pages and create pdb files that can be read e.g. by the Plucker viewer, available for PalmOS and other platforms, and e.g. by FBReader. But you can also work with and convert many different ebook file types using this method.
Aozora Kindle that allows to convert books to the PDF format optimized for Kindle. Kindle has an extensive ebook audience which makes it a robust e-reader currently available. As you can see, e-books can be viewed in many formats such as ePub, MOBI, AZW3 and more.
3. There are many other online converters. I chose this file because it had just enough complexity to test these conversion tools, but not so much that it will break all of them. The tools created for the process of conversion use Gostscript for conversion purposes.