Applying redactions to PDFs

Redactions can be applied using the WebViewer UI or programmatically.

A user can simply click on a redaction annotation and click on the apply button to apply a single redaction.

There is also an 'Apply All' button that applies every redaction annotation in the document.

Redactions can be applied using the applyRedactions function on AnnotationManager. applyRedactions returns a promise and can be used to apply a single redaction, an array of redactions, or all redactions in a document. When using WebViewer Server, the returned promise will resolve to a response object with a URL to download the redacted document.

const redactionList = annotManager.getAnnotationsList().filter(annot => annot instanceof Annotations.RedactionAnnotation);

// apply a single redaction
annotManager.applyRedactions(redactionList[0])
  // When using WebViewer Server, 'results' will be a response object with a 'url' property for downloading the redacted document.
  .then(results => {
    return annotManager.applyRedactions(redactionList.filter(redaction => redaction.Author === 'User'));
    // When using WebViewer Server, the previous redaction will not appear in the results. It'll only redact the redactions provided to 'applyRedactions'.
    // However when using 'fullAPI', the document will have all previously applied redactions
  })
  .then(result => annotManager.applyRedactions());