Get ready for Readium Dev Day 2027 in Bologna, Italy!
After a successful first edition of the Readium Dev Day in Prague, we're preparing our next event alongside the 2027 Digital Publishing Summit next June!
Latest
Release Note · Swift Toolkit Version 4.0.0-alpha.2
We are happy to announce the second alpha of the Readium Swift Toolkit 4.0. This pre-release brings support for EPUBs mixing reflowable text with full-bleed, fixed-layout pages, makes opening and streaming LCP publications much faster, and fixes a number of long-standing issues.
Release Note · Kotlin Toolkit Version 3.4.0
We are happy to announce the release of the Readium Kotlin Toolkit 3.4.0. This version brings some improvements with the PDFium adapter, the CRL fetch for LCP protected publications, and gives the EPUB navigator a way to tell you what images the user tapped on.
Powered by Readium · Muhammed Salah on building digital bridges between publishers and readers
A few weeks ago, we met with Muhammed Salah, Digital Products Manager at Samawy, to discuss the company's vision and ambitions. We focused on the way that Samawy channels Readium technologies in both their user-facing platform and their internal ebook production pipeline.
Release Note · Swift Toolkit Version 4.0.0-alpha.1
We are happy to announce the first alpha of the Readium Swift Toolkit 4.0.0, a major version focused on Swift 6 and strict concurrency. This release also brings richer accessibility metadata to the Content API, a reworked LCP authentication flow, and a leaner set of packages.
Release Note · July 2026: New features in the TS Toolkit
We are pleased to announce the implementation of the Decorator API in TS-Toolkit, along with Timeline support for HTML publications, tree-shakeable ESM-only builds, and a new Helpers package.
Release Note · Swift Toolkit Version 3.11.0
We are happy to announce the release of the Readium Swift Toolkit 3.11.0. This update gives you more control over audio session handling, makes LCP more robust across app reinstalls, and fixes several Navigator issues.
Readium Dev Day 2026 · A deep dive into Readium projects
On June 10th, in the continuity of the 2026 Digital Publishing Summit, we invited members of our community to join us in Prague, Czechia to discuss our projects. Let's take a look back at what we've learned at the Readium Dev Day!
Release Note · Kotlin Toolkit Version 3.2.0
We are pleased to announce version 3.2.0 of the Readium Kotlin Toolkit. This release brings animated page transitions to EPUB, adds support for fetching remote EPUB resources, and includes a number of fixes and housekeeping improvements.
Release Note · Swift Toolkit Version 3.9.0
We are happy to announce the release of the Readium Swift Toolkit 3.9.0. This update delivers major performance gains for PDF, brings a series of refinements to the EPUB and PDF navigators, and introduces the new Playground app.
Support for RTL and CJK in Readium Web
We are pleased to announce the support for Right-to-Left and CJK (Chinese, Japanese, Korean) scripts in Readium Web!
Audiobooks support in Readium Web
We are pleased to announce the support for audiobooks in Readium Web. This support is built on top of a new Audio Navigator in TS-Toolkit, which provides everything you need to build an audiobook reader.
Readium Dev Day 2026 · An invitation to our interactive session for developers
Join us in Prague on June 10th for a chance to meet the team and talk about the future of Readium. Registrations are open until April 3rd.
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.