Software update: Caliber 5.41

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Version 5.41 of Caliber has been released. This open source ebook manager is available for Windows, Linux, and macOS. Among other things, it can look up all relevant information and cover images, and convert ebooks 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. Books can also be purchased with Caliber at the well-known web stores. The following changes and improvements have been made in this release:

New features

  • Allow creating multiple types of temporary marks (pins) by right clicking the mark books button (which can be added to the caliber toolbar via Preferences->Toolbars & menus). Close tickets: 1968810
  • Kobo driver: Support updated firmware.
  • Show a popup message when a Kindle is connected mentioning the Amazon cover bug and how to workaround it. Close tickets: 1967149
  • Edit book: Table of Contents tool: Allow using the title attribute on headings tags to get the text for table of contents entries.
  • When creating a custom column to display real numbers allow specifying th enumber of decimal digits to display.
  • Amazon metadata download: Add support for country website.

bug fixes

  • Edit book: Fix AltGr+{ not working on some keyboard layouts. Close tickets: 1969302
  • TXT Input: Fix rare failure to convert some large TXT files with non-ascii text. Close tickets: 1967828
  • Get books: Update English language Amazon plugins for website changes.

New news sources

  • Eenadu by unkn0wn
  • Harvard Business Review by unkn0wn
  • Hindustan by unkn0wn
  • Dainik Bhaskar by unkn0wn
  • Free Inquiry by Howard Cornett
  • Sportstar by unkn0wn
  • Digit Magazine by unkn0wn
  • The Diplomat by unkn0wn

Improved news sources

  • The Economic Times India
  • Business Standard
  • Wired Magazine Monthly Edition
  • Reason Magazine
  • The Skeptical Inquirer
  • Times of India
  • LiveMint
  • The Week
  • Indian Express
  • Hindustan Times

Version number 5.41
Release status Final
Operating systems Windows 7, Linux, macOS, Windows 8, Windows 10, Windows 11
Website caliber
file size


License type GPL