Calibre is an e-book library management application, viewer and editor. It's also commonly used for e-book file format conversion and syncing to reader devices. Calibre also simplifies downloading news from the web and converting them into e-book form, and can act as content server for online access to your book collection.
minor feature: Release: 5.6 27 Nov, 2020 New features Edit book: Show a non-modal popup for a few seconds to allow undoing file delete operations.Device books view: Add an action to the context menu to easily jump to the matching book in the calibre library viewAdd ability to undo Generate cover in the Edit metadata screen, by long clicking the Generate cover buttonEdit book: Allow adding tags to the list of tags for the insert tag button.calibredb add: New option --automerge to automatically merge duplicates.Add an edit notes action to the context menu in the viewer highlights panelContent server viewer: Allow viewing images in a new window by right clicking them, matches the calibre builtin viewer behaviorBook details window: Allow opening the edit metadata window using either the keyboard shortcut or the context menuAllow copying the current search as a calibre:// URL by right clicking the search box.Book details panel: Add entries to copy calibre:// links for the current book to the context menu.Edit book: Upgrade book: Ask whether to keep the NCX based Table of Contents.Windows: calibre portable launcher not working correctly from root directory in calibre 5.5macOS: rendering of space after punctuation incorrect in Big SurDOCX Input: When converting images placed using the obsolete VML markup default them to being inline rather than block imagesMetadata edit dialog: keyboard shortcuts for bold/italic/underline not working when more than one comments editor widget is present on a single tabWhen using calibre://show-book URLs and the book is not found, clear any Virtual library or search restriction and then show the bookmacOS: calibre:// URLs not working from other documents.calibre:// URL search action not changing library if needed.annotation_count() template function displaying value for deleted annotationsEdit book: syntax highlighting not recognizing ends-with selectorImproved news sources.The BBC. Folha de Sao Paolo. Netzpolitik.