capabilities.json

{
  "@context" : [
    "http://iiif.io/api/image-api/context.json",
    {
      "ext" : "http://www.shared-canvas.org/iiif/ext/",
      "ext:watermarking" : {"@type" : "xsd:boolean"}
    }
  ],
  "@id" : "http://libimages.princeton.edu/loris",
  "contact" : "mailto:admin@example.com",
  "contentNegotiation" : "true",
  "defaultFormat" : "jpg",
  "regionByPct" : "true",
  "regionByPx" : "true",
  "rotationArbitrary" : "true",
  "rotationBy90s" : "true",
  "sizeByForcedWH" : "true",
  "sizeByH" : "true",
  "sizeByPct" : "true",
  "sizeByW" : "true",
  "sizeByWH" : "true",
  "ext:watermarking" : "true",
  "extensions" : [
    {
      "@id" : "ext:watermarking",
      "description" : "For degraded images, a watermark of the repository will be applied by the server"
    }
  ] 
}

context.json

{
  "@context": {
    "@vocab" : "http://iiif.io/api/image-api#",
    "xsd" : "http://www.w3.org/2001/XMLSchema#",
    "description": "http://purl.org/dc/terms/description",
    "http_delete" : { "@type" : "xsd:boolean" },
    "http_post" : { "@type" : "xsd:boolean" },
    "http_put" : { "@type" : "xsd:boolean" },
    "contentNegotiation" : { "@type" : "xsd:boolean" },
    "enabled" : { "@type" : "xsd:boolean" },
    "feature01325" : { "@type" : "xsd:boolean" },
    "regionByPct" : { "@type" : "xsd:boolean" },
    "regionByPx" : { "@type" : "xsd:boolean" },
    "rotationArbitrary" : { "@type" : "xsd:boolean" },
    "rotationBy90s" : { "@type" : "xsd:boolean" },
    "sizeByForcedWH" : { "@type" : "xsd:boolean" },
    "sizeByH" : { "@type" : "xsd:boolean" },
    "sizeByPct" : { "@type" : "xsd:boolean" },
    "sizeByW" : { "@type" : "xsd:boolean" },
    "sizeByWH" : { "@type" : "xsd:boolean" }
  }
}