Calibre 2.28 recently released, is a free and open source e-book library management application developed by users of e-books for users of e-books. This latest release comes with a new feature which supports conversion of text styles, images, lists, tables, embedded fonts, etc. Produces DOCX files compatible with Microsoft Word 2007 or newer. Calibre 2.28 changelog New Features Add keyboard shortcuts (Ctrl+Right, Ctrl+Left) to switch between virtual library tabs. When sending email using GMX pause for five minutes between books, to prevent GMX from blocking the account.