如何在iOS WKWebView上加载pdf格式的html文件

if let htmlPath = Bundle.main.path(forResource: "converted_pdf", ofType: "html") {
    let url = URL(fileURLWithPath: htmlPath)
    let request = URLRequest(url: url)
    webView.load(request)
}

let webViewConfiguration = WKWebViewConfiguration()
webViewConfiguration.preferences.minimumFontSize = 10
webViewConfiguration.preferences.javaScriptEnabled = true

let webView = WKWebView(frame: view.bounds, configuration: webViewConfiguration)
view.addSubview(webView)

class ViewController: UIViewController, WKNavigationDelegate {
    // ...

    override func viewDidLoad() {
        super.viewDidLoad()
        webView.navigationDelegate = self
    }

    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
        print("页面加载完成")
    }

    func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {
        print("页面加载失败: \(error.localizedDescription)")
    }

    // ...
}