Publication Manifest to EPUB Mapping

This document provides mappings from the Publication Manifest format to EPUB's Package Document.

1. Language Declarations

Publication Manifest	EPUB 3 Package Document	Explanation
@context/language	package[@xml:lang]	Global manifest/package language declaration.
term/language	metadata/meta[@xml:lang]	Local language overrides.
inLanguage	dc:language	Language of the publication.

2. Conformance

Publication Manifest	EPUB 3 Package Document	Explanation
type	(none)	The type of publication. EPUB does not have an equivalent in the specification, but can be expressed as meta[@property=rdf:type].
conformsTo	dc:type	The profile the publication conforms to. EPUB uses reserved keywords instead of URLs for profiles.

3. Structure

Publication Manifest	EPUB 3 Package Document	Explanation
readingOrder	spine	Default progression through the content. EPUB uses references to the manifest, while the Package Document uses a list of resources.
resources	manifest	Identifies the resources of the publication. The EPUB manifest is the complete set of resources, while Pub Manifest uses a union of readingOrder and resources.
links	metadata/link	Linked resources. EPUB does not separate the links from the other publication metadata, but the links themselves.

4. Resources

Publication Manifest	EPUB 3 Package Document	Explanation
rel= accessibility-report	link[@rel=a11y:certifierReport]	Accessibility report for the publication. EPUB use is defined in the Accessibility specification.
rel= contents	item[@properties=nav]	Identifies the document containing the table of contents. EPUB requires all navigation aids in the navigation document, so does not uniquely identify the resources within it.
rel= cover	item[@properties= cover-image]	EPUB only identifies cover images. Pub Manifest allows any resource to be identified as the cover.
rel= pageList	item[@properties=nav]	Identifies the document containing the page list. EPUB requires all navigation aids in the navigation document, so does not uniquely identify the resources within it.
rel= preview	dc:type=preview	A preview for the publication. EPUB use is defined in the Previews specification. EPUB defines entire publications as previews and also embeds previews using collections.
rel= privacy-policy	(none)	Privacy policy for the publication. EPUB does not have an equivalent in the specification, but could be expressed as link[rel=privacy-policy] once registered.

5. Accessibility

Publication Manifest	EPUB 3 Package Document	Explanation
accessibilityFeature	meta[@property= schema:accessibilityFeature]	Accessibility features of the publication. EPUB use is defined in the Accessibility specification.
accessibilityHazard	meta[@property= schema:accessibilityHazard]	Potential hazards from the content. EPUB use is defined in the Accessibility specification.
accessibilitySummary	meta[@property= schema:accessibilitySummary]	Human-readable summary of the accessibility. EPUB use is defined in the Accessibility specification.
accessMode	meta[@property= schema:accessMode]	Access modes of the content. EPUB use is defined in the Accessibility specification.
accessModeSufficient	meta[@property= schema:accessibilityFeature]	Sufficient set(s) of access modes that allow consumption of the content. EPUB use is defined in the Accessibility specification.

6. Fallbacks

Publication Manifest	EPUB 3 Package Document	Explanation
LinkedResource/alternate	item[@fallback]	An alternate format representation of a resource.

7. Durations

Publication Manifest	EPUB 3 Package Document	Explanation
duration	meta[@property= media:duration]	Total duration of the publication.
linkedResource/length	meta[@property= media:duration][@refines=idref]	Duration of a resource. EPUB uses meta tags to associated a duration with a resource, whereas Pub Manifest can express the duration directly with the resource.

8. Publication Metadata

Publication Manifest	EPUB 3 Package Document	Explanation
abridged	(none)	Whether the publication is abridged. EPUB does not have an equivalent in the specification, but can be expressed as meta[@property=schema:abridged].
creator (artist, author, etc.)	dc:creator, dc:contributor + meta[@role]	Creators of the publication. EPUB "refines" the DC elements to add roles.
datePublished	dc:date	Date the publication was published.
dateModified	dcterms:modified	Last modification date of the publication.
id	package[@unique-identifier] - dc:identifier	Unique identifier for the publication.
name	dc:title	Title of the publication.
readingProgression	spine[@page-progression-direction]	The content flow direction. EPUB's use is more specifically tied to the expected rendering (e.g., page loading for fixed layouts).
url	(none)	Address of the publication. EPUB does not have an equivalent in the specification, but can be expressed as meta[@property=schema:url].

9. Additional EPUB Features

The following table lists features from the EPUB 3 Packages specification that are not supported or a key part of the Publication Manifest specification.

EPUB 3 Feature	Explanation
Collections	Collections are like mini-package documents within the package document. Accommodating them would similarly require a manifest-like set of objects, presumable under a collections property. There seems to be limited to no uptake of collections in EPUB, however, despite a few specifications that use them (e.g., previews, indexes and dictionaries).
Dublin Core Optional Elements	The following elements do not have a parallel in the Publication Manifest: coverage, description, subject, format, relation, rights, source and subject. All of these can be included in a manifest, however, as the dc prefix is part of the initial context.
Linear content	The publication manifest does not require non-linear content in the reading order, so does not distinguish it.