canvasMaxAreaInBytes in DocumentInitParameters has type Boolean, preventing TypeScript users from passing the correct (numeric) value.
if (
      !Number.isInteger(pageNumber) ||
      pageNumber <= 0 ||
      pageNumber > this._numPages
    ) {
      return Promise.reject(new Error("Invalid page request."));
    }
    const pageIndex = pageNumber - 1,
      cachedPromise = this.#pagePromises.get(pageIndex);
    if (cachedPromise) {
      return cachedPromise;
    }
    const promise = this.messageHandler
      .sendWithPromise("GetPage", {
        pageIndex,
      })
      .then(pageInfo => {
        if (this.destroyed) {
          throw new Error("Transport destroyed");
        }
        const page = new PDFPageProxy(
          pageIndex,
          pageInfo,
          this,
          this._params.pdfBug