THPDFHeadlessDocument.SaveReviewHighlightsToFile
procedure SaveReviewHighlightsToFile(const FileName: string;
const Highlights: THPDFHeadlessReviewHighlights;
const ReviewOptions: THPDFHeadlessReviewOptions);保存一份带实际可见 appearance 的私有增量评审副本，遵守加密、已认证的签名权限和文档 budget，且不改动已加载的源文档