Release Note · Swift Toolkit Version 3.8.0
We are happy to announce a new update to the Swift toolkit, which focuses on strengthening the security of LCP repositories and improving the reading experience for Fixed-Layout (FXL) EPUBs.
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Content Protection in Readium Web
We are pleased to announce the release of new features in Readium Web: the Content Protection API, the Peripherals API, and a listener to customize the context menu.
What's New in Readium Mobile? · Q4 2025
In this new instance of "What's New in Readium Mobile", we discuss topics ranging from our extended Beta for Thorium Mobile to our localization strategy.
Release Note · Readium CSS 2.0
We are pleased to announce the release of a stable version 2.0.0 of Readium CSS, the library of styles that enables the EPUB reading experience in Readium toolkits and Thorium applications.
Using custom fonts with Readium Web
Use any custom font, including accessible ones, with this new release for Readium Web. Available for testing in the Playground.
Assessing the accessibility of your backlist with Readium CLI
Discover how the Readium CLI can help you to extract metadata and prepare to remediate your EPUB backlist.
Release Note · Swift Toolkit Version 3.7.0
We are pleased to release the Readium Swift Toolkit 3.7.0. This update brings significant improvements to how comics are handled, improves performance for large documents, and streamlines our localization sources.
EAA with Readium: Customizing text and layout in digital publications
Visual accessibility is one of the cornerstones of creating an inclusive digital experience, but it is also a very challenging one to tackle, because it does not have a one-size-fits-all solution.
Release Note · Swift Toolkit Version 3.6.0
We are happy to announce the release of the 3.6.0 version of the Swift toolkit. This new version focuses on refining the user experience for fixed-layout publications.
Robert Cartolano on advocating for interoperable standards in academic libraries
A few weeks ago, we met with Robert Cartolano from the Columbia University Libraries and the Readium Foundation, to discuss his long-time advocacy for open-source and open standards in libraries.
Release Note · Swift Toolkit Version 3.5.0
We are happy to announce the release of the 3.5.0 version of the Swift toolkit. This new version of comes with improvements to EPUB layout and legibility, as well as new utilities for text-to-speech (TTS) and more flexible integrations for LCP.
What's New in Readium Mobile? · Q3 2025
In this edition we discuss: public service announcements regarding monorepos and minimum iOS version, Thorium Reader as a reference application for Readium Mobile and what's new and coming next in both toolkits.
What's New in Readium Web? · Q3 2025
In this edition we discuss: the release of Thorium Web 1.0.x, support for accessibility metadata and what's coming next for our Web related projects.
Powered by Readium · Jonathan Greenberg on open-access publishing and accessibility in academia
Last month, we sat down with Jonathan Greenberg, Digital Scholarly Publishing Specialist at the NYU Libraries, to discuss their ongoing publication of a series of open-access ebooks on a brand new Web reader, powered by Thorium Web.