App to Create eBook Docs
Use LibreOffice Writer with the eLAIX extension to create eBook documents on Linux.
The Open source Extension for LibreOffice/OpenOffice helps you with an own toolbar, in creating well formed and structured documents. Export your document as an ePUB document, that follows the new specifications of the ePUB 3 standard. Define content related options like cover image, maximum image width, chapter numbering and the TOC title.