Method copyObject

src/document/object-copier.ts:139–163

* Deep copy any PDF object, remapping references to destination.

(obj: T)

   * Deep copy any PDF object, remapping references to destination.
   */
  copyObject<T extends PdfObject>(obj: T): T {
    if (obj instanceof PdfRef) {
      // oxlint-disable-next-line typescript/no-unsafe-type-assertion
      return this.copyRef(obj) as unknown as T;
    }

    if (obj instanceof PdfStream) {
      // oxlint-disable-next-line typescript/no-unsafe-type-assertion
      return this.copyStream(obj) as unknown as T;
    }

    if (obj instanceof PdfDict) {
      // oxlint-disable-next-line typescript/no-unsafe-type-assertion
      return this.copyDict(obj) as unknown as T;
    }

    if (obj instanceof PdfArray) {
      // oxlint-disable-next-line typescript/no-unsafe-type-assertion
      return this.copyArray(obj) as unknown as T;
    }

    // Primitives (PdfName, PdfNumber, PdfString, PdfBool, PdfNull)
    // are immutable and can be reused directly
    return obj;
  }

  /**
   * Copy a reference, creating the referenced object in dest if needed.