Calibre Portable is program to manage your e-book collection. It acts as an e-library and also allows for format conversion, news feeds to eBook conversion, as well as e-book reader sync features and an integrated e-book viewer. It features library management, format conversion (all major eBook formats), syncing to eBook reader devices, fetching news from the Web and converting it into eBook form, viewing many different eBook formats, and giving you access to your book collection over the internet using just a browser.
E-book viewer: Automatically save the current reading position every ten seconds. Prevents loss of reading position on crash/forced shutdown.
Edit Book: Check Book: Add checks for missing OPF version and toc references and for text placed directly inside the < body > tag.
calibredb: Add a new search sub-command that can be used to generate a list of book ids from a search expression.
Tag Editor: Place the keyboard focus on the last edited field.
Edit metadata dialog: When clicking Next and Previous preserve the current tab of the edit comments widget.