Method addTextMarkupAnnotation

src/api/pdf-page.ts:2007–2034

* Add a text markup annotation (internal helper).

(
    subtype: "Highlight" | "Underline" | "StrikeOut" | "Squiggly",
    options: TextMarkupAnnotationOptions,
  )

   * Add a text markup annotation (internal helper).
   */
  private addTextMarkupAnnotation(
    subtype: "Highlight" | "Underline" | "StrikeOut" | "Squiggly",
    options: TextMarkupAnnotationOptions,
  ): PDFAnnotation {
    // Use the static create method on the appropriate class
    let annotDict: PdfDict;

    switch (subtype) {
      case "Highlight":
        annotDict = PDFHighlightAnnotation.create(options);
        break;
      case "Underline":
        annotDict = PDFUnderlineAnnotation.create(options);
        break;
      case "StrikeOut":
        annotDict = PDFStrikeOutAnnotation.create(options);
        break;
      case "Squiggly":
        annotDict = PDFSquigglyAnnotation.create(options);
        break;
    }

    // Register and add to page
    const annotRef = this.ctx.register(annotDict);
    this.addAnnotationRef(annotRef);

    return createAnnotation(annotDict, annotRef, this.ctx.registry);
  }

  /**
   * Add a link annotation.