Calibre 8.4 Open-Source Ebook Manager Improves KEPUB Output, Fixes Bugs

Calibre 8.4 was released today by developer Kovid Goyal as yet another maintenance update to the Calibre 8.x series of this open-source, cross-platform, and free ebook management software for Linux, macOS, and Windows. Highlights of Calibre 8.4 include a new option to generate KEPUB files that have better text justification at the cost of gaps in highlighting when used on a Kobo ebook reader and support for extending the background image specified in the Style section of the E-book viewer preferences under the page margins. The E-book viewer received more attention in this release as the developer also fixed a regression that broke the "show book in main calibre program" link, an issue where some links weren't processed correctly for very large EPUB files that contained many internal HTML files, and the ability to handle links to missing internal files with an error pop-up. In addition, Calibre 8.4 improves tag merging in the Metadata Review dialog, updates the ebooks.com plugin in the Get Books component, fixes the 'Next' and 'Previous' links in News Download, and adds a workaround for a Qt/Wayland bug that prevented the menu of the Layout button from showing. Other than that, this release prevents recursion when creating the base temporary folder if something on the system deletes the created temporary folder, adds Frieze Magazine as a new news source, and improves the NYTimes Book Review, Washington Post, Hindu, Economist, tagesschau, and Economist Espresso news sources. Check out the release notes for more details about the changes included in Calibre 8.4, which you can download right now from the official website for 64-bit and AArch64 (ARM64) Linux systems, as well as for macOS and Windows systems. You can also install Calibre as a Flatpak app from Flathub. The post Calibre 8.4 Open-Source Ebook Manager Improves KEPUB Output, Fixes Bugs appeared first on 9to5Linux - do not reproduce this article without permission. This RSS feed is intended for readers, not scrapers.

May 9, 2025 - 13:25

Calibre 8.4 Open-Source Ebook Manager Improves KEPUB Output, Fixes Bugs

Calibre 8.4 was released today by developer Kovid Goyal as yet another maintenance update to the Calibre 8.x series of this open-source, cross-platform, and free ebook management software for Linux, macOS, and Windows.

Highlights of Calibre 8.4 include a new option to generate KEPUB files that have better text justification at the cost of gaps in highlighting when used on a Kobo ebook reader and support for extending the background image specified in the Style section of the E-book viewer preferences under the page margins.

The E-book viewer received more attention in this release as the developer also fixed a regression that broke the "show book in main calibre program" link, an issue where some links weren't processed correctly for very large EPUB files that contained many internal HTML files, and the ability to handle links to missing internal files with an error pop-up.

In addition, Calibre 8.4 improves tag merging in the Metadata Review dialog, updates the ebooks.com plugin in the Get Books component, fixes the 'Next' and 'Previous' links in News Download, and adds a workaround for a Qt/Wayland bug that prevented the menu of the Layout button from showing.

Other than that, this release prevents recursion when creating the base temporary folder if something on the system deletes the created temporary folder, adds Frieze Magazine as a new news source, and improves the NYTimes Book Review, Washington Post, Hindu, Economist, tagesschau, and Economist Espresso news sources.

Check out the release notes for more details about the changes included in Calibre 8.4, which you can download right now from the official website for 64-bit and AArch64 (ARM64) Linux systems, as well as for macOS and Windows systems. You can also install Calibre as a Flatpak app from Flathub.

The post Calibre 8.4 Open-Source Ebook Manager Improves KEPUB Output, Fixes Bugs appeared first on 9to5Linux - do not reproduce this article without permission. This RSS feed is intended for readers, not scrapers.