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.
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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.