Readium LCP for PDF 1.0

Revision: 2

Contributors: Laurent Le Meur (EDRLab), Hadrien Gardeur (De Marque)

Requirements

LCP for PDF is based on the PDF Profile of the Readium Web Publication Manifest and follows its requirements for packaging.
Every package must use:
- the .lcpdf extension.
- the application/pdf+lcp media type.
An embedded LCP License Document must be located at license.lcpl.
A numberOfPages property must be present in the metadata section of the manifest. It is used by Reading Systems to evaluate user’s progression in the publication.
A cover should be referenced in the resources section of the manifest and, if present, must not be encrypted.
The encrypted PDF document referenced in the readingOrder must not be compressed in the package.
A type property must be set for the PDF document, its value must by application/pdf.
A sizeproperty should be set for the PDF docmuent. It is the size in bytes of the PDF document before compression and encryption.
An encrypted must be set in properties for the PDF document, where:
- scheme must be set to http://readium.org/2014/01/lcp.
- algorithm must be set; it indicates the encryption algorithm applied to the document, currently “http://www.w3.org/2001/04/xmlenc#aes256-cbc”.

Example

{
  "@context": "https://readium.org/webpub-manifest/context.jsonld",
  "metadata": {
    "@type": "http://schema.org/Book",
    "conformsTo": "https://readium.org/webpub-manifest/profiles/pdf",
    "title": "Readium Web Publication Manifest",
    "author": "Readium Community",
    "numberOfPages": 102

  },
  "readingOrder": [
    {
      "href": "publication.pdf",
      "type": "application/pdf",
      "size": 8523576,
      "properties": {
        "encrypted": {
          "scheme": "http://readium.org/2014/01/lcp",
          "algorithm": "http://www.w3.org/2001/04/xmlenc#aes256-cbc"
        }
      }
    }
  ],
  "resources": [
    {
      "href": "cover.jpg",
      "type": "image/jpeg",
      "rel": "cover" 
    }
  ]
}

Demo

An example where the PDF is not (yet) encrypted is available at: http://readium.org/lcp-specs/examples/lcpdf/rwpm.lcpdf

JSON Schema

A JSON Schema for the manifest of an LCPDF package is available under version control at: https://github.com/readium/lcp-specs/blob/master/schema/lcpdf.schema.json

For validating a manifest, use the following reference: https://readium.org/lcp-specs/schema/lcpdf.schema.json