Class defined in model/PropertyAnnotation.js#38 inherits from

A property annotation can be used to overlay text and give it a special meaning. PropertyAnnotations only work on text properties. If you want to annotate multiple nodes you have to use a model/ContainerAnnotation.


Here's how a strong annotation is created. In Substance annotations are stored separately from the text. Annotations are just regular nodes in the document. They refer to a certain range (startOffset, endOffset) in a text property (path).

doc.transaction(function(tx) {
    id: 's1',
    type: 'strong',
    start: {
      path: ['p1', 'content'],
      offset: 10
    end: {
    path: ['p1', 'content'],
    "startOffset": 10,
    "endOffset": 19