Version 1.16 of the eBook reader and management software Calibre has been announced on December 20, bringing a lot of improvements for the book editor.
The previous build of Calibre introduced a new function, called Book Editor, which allows users to edit EPUB and AZW3 formats on the fly.
Calibre 1.16 brings a large number of improvements for this function, especially because it's now used extensively by the community and a lot of the new features and changes were needed in order to make it better.
A tool has been added to help users browse all the images in the book with their thumbnails. This is very useful for visually locating an image. The new function can be found in View->Browse images, inside the book.
Also, the creation of new, empty books via the new option File->Create new book, has been added, and a number of buttons have been implemented to easily create formatting such as bold/italic/colors/etc. when the users are editing HTML files.
Highlights of Calibre 1.16:
• A button to easily insert <img> tag while editing HTML has been added;
• A few options to change the default font families/sizes for the preview panel have been implemented;
• Customizing which dockable windows occupy the four dock corners can now be done via Edit->Preferences;
• When editing AZW3 files with no images in them, the application no longer displays a number of binary records from the AZW3 file as “unknown” miscellaneous files.
Keep in mind that, if you want to compile the software yourself, you will need GLIBC 2.10 or higher, and xdg-utils and Python ≥ 2.6 installed (3.x will not work). More details about the required dependencies can be found on the official website.