EPUB Context

Name URI Description Required?
EPUB Context https://readium.org/webpub-manifest/contexts/epub/context.jsonld EPUB specific metadata No

Rendition Properties

All rendition specific properties must show up in a rendition object. This specification allows the following elements, all defined in the EPUB 3.2 specification:

Key Semantics Type Values URI
layout Hint about the nature of the layout. String fixed or reflowable http://www.idpf.org/vocab/rendition/#layout
orientation Suggested orientation for the device when displaying the publication. String auto, landscape or portrait http://www.idpf.org/vocab/rendition/#orientation
overflow Suggested method for handling overflow while displaying the publication. String auto, paginated, scrolled or scrolled-continuous http://www.idpf.org/vocab/rendition/#flow
spread Indicates the condition to be met for the publication to be rendered within a synthetic spread. String auto, both, none or landscape http://www.idpf.org/vocab/rendition/#spread

Here’s an example of metadata for a fixed layout document:

"rendition": {
  "overflow": "paginated",
  "layout": "fixed",
  "orientation": "landscape",
  "spread": "none"

Appendix A - JSON Schema

The EPUB context is referenced in the core JSON Schema for the Readium Web Publication Manifest.

The JSON Schema is under version control at https://github.com/readium/webpub-manifest/blob/master/schema/extensions/epub/metadata.schema.json