Software update: Caliber 2.21

Version 2.21 of Caliber has been released. Caliber is an open source and cross platform ebook management program. Among other things, it can look up all relevant information and cover images, and convert e-books to make them suitable for the various types of e-readers. Furthermore, the program can convert newspapers, magazines and news articles based on RSS feeds into e-book format, and books can be purchased from well-known web stores. The following changes and improvements have been made in this release:

New Features

  • Allow opening ebook files and covers in external applications by simply right clicking on them in the Book Details panel.
    Now, you can right click on an ebook format or the cover in the Book Details panel, and open it with any application installed on your computer. caliber will automatically present you with a list of application capable of opening the file. Simply choose one, or if your particular application is not auto-detected, you can browse for it manually.
  • Tag Browser: Make rename and delete for items in the Tag Browser restrict themselves to the current Virtual Library (if any). There is also an additional menu entry you can use to rename and delete across all books while in a Virtual Library.
  • Conversion: Use a new (written from scratch) implementation of CSS Level 3 selectors that fixes various bugs in handling of the more advanced/uncommon CSS selectors such as nth-last-child()
  • Edit Book: Allow restoring of disabled confirmation prompts in preferences and add a confirmation when removing saved searches
  • Edit ToC button: Remember the last used ebook formats

Bug Fixes

  • E-book viewer: Fix regression that prevented pasting of text with formatting from the viewer. Close tickets: 1428018
  • Table of Contents Editor: Fix selecting a location inside a file and then clicking on another file causes the previous location to be used in the new file. Close tickets: 1428212
  • DOCX Input: Fix incorrect bold font weight being used for heading styles even if the style definition does not specify bold. Close tickets: 1430831
  • AZW3 Input: Fix a bug that prevented conversion of AZW3 files that contained an empty CSS media block. Close tickets: 1426220
  • PDF Output: Fix incorrect rendering of text in elements that use font-variant:small-caps and also have children. Close tickets: 1425094
  • Get Books: Update Amazon Europe, Empik and CDP store plugins
  • PDF Output: Fix incorrect conversion of source document that specify dir=”rtl” on the root element. Close tickets: 1429292
  • PDF Output: Ignore unparseable links instead of aborting the conversion on them. Close tickets: 1429282
  • Fix reading metadata from filenames tester not working for dates before 1900. Closes tickets: 1424607
  • Linux binary install: Fix SSL CA certificates not being detected on Fedora based distributions
  • Books list: Fix column alignment incorrectly propagating when changing libraries
  • FB2 Input: Don’t put a border around images
  • Fixes for various incompatibilities with (Py)Qt 5.4.1 which is used by some caliber distro packages on linux
  • Fix error when running calibredb backup_metadata on a library that contains book records with no path information
  • Edit Book: Fix extra search being hidden when removing a saved search
  • Fix a regression in 2.20 that prevented some changes to per-library preferences from being saved
  • Linux installer: Do not register application/octet-stream as one of the mimetypes caliber can handle

New news sources

  • Pando Daily by Darko Miletic

Improved news sources

  • Spectrum of Knowledge
  • New Musical Express
  • The Daily Mirror

Version number 2.21
Release status Final
Operating systems Windows 7, Linux, Windows XP, macOS, Windows Vista, Windows 8, Windows 10
Website Caliber Team
File sizes

61.10MB – 76.40MB

License type GPL