Supported publication formats

EPUB

(Electronic PUBlication) is an open file format for electronic publications. EPUB is a native semantic format allowing to use numerous standardised languages such as HTML, ARIA, MATHML, SVG and others. The actual version 3 is known to provide the best up to date reading experience. Obsolete EPUB2 files are also readable in Thorium.

DAISY

Usually produced and distributed by specialized libraries or NGOs, the DAISY format offers a significantly enhanced reading experience for ebooks that are not available in EPUB3. Thorium supports reading DAISY 3 and 2.02, both in their text only, audio only, and syncronised text and audio.

PDF

despite a well-known lack of flexibility (no reflow option) and accessibility, many ebooks are still available in PDF only, especially in public libraries.

Audiobooks

a standardized format for audiobooks has been designed by the W3C Publishing Working Group in 2020, and EDRLab was part of this WG. Thorium is supporting the packaged (LPF) audiobook format, which will soon be widely used by booksellers, or so we hope.

Visual narratives

EDRLab has designed a standard format for comics, manga, webtoons and other styles of digital works based on sequances of images. Divina is the name of this format. This is still an experimental format, and we hope that publishers will size it in 2021+.