Function createAnnotation

src/annotations/factory.ts:45–115

(
  dict: PdfDict,
  ref: PdfRef | null,
  registry: ObjectRegistry,
)

 * @returns The appropriate annotation class instance
 */
export function createAnnotation(
  dict: PdfDict,
  ref: PdfRef | null,
  registry: ObjectRegistry,
): PDFAnnotation {
  const subtypeName = dict.getName("Subtype", registry.resolve.bind(registry))?.value;

  const subtype = isAnnotationSubtype(subtypeName) ? subtypeName : "Text";

  switch (subtype) {
    case "Text":
      return new PDFTextAnnotation(dict, ref, registry);

    case "Link":
      return new PDFLinkAnnotation(dict, ref, registry);

    case "FreeText":
      return new PDFFreeTextAnnotation(dict, ref, registry);

    case "Line":
      return new PDFLineAnnotation(dict, ref, registry);

    case "Square":
      return new PDFSquareAnnotation(dict, ref, registry);

    case "Circle":
      return new PDFCircleAnnotation(dict, ref, registry);

    case "Polygon":
      return new PDFPolygonAnnotation(dict, ref, registry);

    case "PolyLine":
      return new PDFPolylineAnnotation(dict, ref, registry);

    case "Highlight":
      return new PDFHighlightAnnotation(dict, ref, registry);

    case "Underline":
      return new PDFUnderlineAnnotation(dict, ref, registry);

    case "Squiggly":
      return new PDFSquigglyAnnotation(dict, ref, registry);

    case "StrikeOut":
      return new PDFStrikeOutAnnotation(dict, ref, registry);

    case "Stamp":
      return new PDFStampAnnotation(dict, ref, registry);

    case "Caret":
      return new PDFCaretAnnotation(dict, ref, registry);

    case "Ink":
      return new PDFInkAnnotation(dict, ref, registry);

    case "Popup":
      return new PDFPopupAnnotation(dict, ref, registry);