Calibre is an eBook management software that is almost without equal, on any platform that runs it. A few years ago nobody could anticipate that eBooks will take our lives completely, but the rise of eBook readers and the fact that most books are cheaper in digital form, proves that it was inevitable for someone to take matters in his own hands and develop something that can actually manage an entire library.

Major part of this release: "A 'Live CSS' tool that shows all the style rules for the tag you are currently editing. You can use it to easily jump to any style rules that affect the current tag. Enable it via View->Live CSS,"
Calibre is a very rapidly evolving piece of software, with weekly releases. As a results bugs are inevitable. Calibre team rely on calibre's users to report bugs, so that they can be fixed as quickly as possible. To report bugs use the calibre bug tracker.


Calibre features divided into the following main categories:
  1. Library Management
  2. E-book conversion
  3. Syncing to e-book reader devices
  4. Downloading news from the web and converting it into e-book form
  5. Comprehensive e-book viewer
  6. Content server for online access to your book collection
  7. E-book editor for the major e-book formats

New Features:
  • A much requested feature. As of calibre 3, calibre now natively supports high resolution (Retina) screens.
  • Calibre now has support for installing different icon themes (Preferences → Look & feel → Icon theme).
  • Calibre can now convert all the book formats it supports to Microsoft Word (DOCX) files.
  • There are a few minor backwards incompatibilities to be aware of in calibre 3.
  • A completely re-written Content server with support for reading books in-browser on your phone/tablet. Also works in offline mode.
  • Support for high resolution (Retina screens)
  • A new splash screen to celebrate the release of calibre 3
  • Minor tweaking of the main user interface to emphasize the core features
  • Book details panel: Allow right click to search the internet for the current book
  • Book details panel: Allow right clicking on an author name to search the internet for works by that author
  • Book details panel: Clicking an author name now searches Goodreads by default instead of Wikipedia. Can be changed in Preferences->Interface->Look & feel->Book details
  • Kobo driver: Add support for the Kobo Aura H2O Edition 2

Bug Fixes:
  • Kobo driver: Fix for detection of some devices, with SD card not working on macOS
  • Tag browser: Fix preservation of state when recounting and the visible categories have changed.
  • CHM Input: Handle CHM files that have missing or empty root files.
  • Fix Page flips options box in viewer preferences bot being laid out properly
  • Fix initial down arrow in search box jumping two places
  • Fix editing the authors via the book list not respecting the tweak to control author name splitting
  • E-book viewer: Fix external links not working in the footnote popup panel
  • Fix a regression that broke command line completion in bash
  • PDF output: Fix a regression in the previous release that broke conversion to PDF for some files
  • DOCX output: Fix lengths specified in percentage of page size not being converted correctly
  • DOCX output: Fix some hyperlinks not working in word because the bookmark name is longer than forty characters
  • DOCX output: Prevent images from being larger than the page size
  • Comic input: Fix the number of colors control not allowing values less than 8
  • Kobo driver: Fix main memory and Card A being swapped on some systems
  • Kobo driver: Fix the ignore collections option being accidentally case-insensitive
  • Preferences->Toolbars: Show an error message when the user tries to remove either the Preferences or Location Manager buttons instead of just silently adding them back

To install Calibre in Debian/Ubuntu/Linux Mint/Any Linux Distribution open Terminal (Press Ctrl+Alt+T) and copy the following command in the Terminal:
That's it
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