asp.net - 如何在 winnovative html 到 pdf 转换器中展开/折叠书签选项

Question

我正在使用 wnvhtmconvert 将我的 html 转换为 pdf。我需要在我的 pdf 中添加展开/折叠书签功能。谁能帮帮我。谢谢。

Answer 1

解决方法是执行this.bookmarkRoot.open=true; 打开文档时的 AcroJS 脚本。您可以在Execute Acrobat JavaScript Code when Document is Opened demo中找到一个完整示例，其中包含在查看器中打开 PDF 文档时执行 AcroJS 代码的源代码。从该演示复制的相关代码是：

protected void convertToPdfButton_Click(object sender, EventArgs e)
{
    // Create a HTML to PDF converter object with default settings
    HtmlToPdfConverter htmlToPdfConverter = new HtmlToPdfConverter();

    Document pdfDocument = null;
    try
    {
        // Convert a HTML page to a PDF document object
        pdfDocument = htmlToPdfConverter.ConvertUrlToPdfDocumentObject(urlTextBox.Text);

        string javaScript = null;
        if (alertMessageRadioButton.Checked)
        {
            // JavaScript to display an alert mesage 
            javaScript = "this.bookmarkRoot.open=true;";
        }
        else if (printDialogRadioButton.Checked)
        {
            // JavaScript to open the print dialog
            javaScript = "print()";
        }
        else if (zoomLevelRadioButton.Checked)
        {
            // JavaScript to set an initial zoom level 
            javaScript = String.Format("zoom={0}", int.Parse(zoomLevelTextBox.Text));
        }

        // Set the JavaScript action
        pdfDocument.OpenAction.Action = new PdfActionJavaScript(javaScript);

        // Save the PDF document in a memory buffer
        byte[] outPdfBuffer = pdfDocument.Save();

        // Send the PDF as response to browser

        // Set response content type
        Response.AddHeader("Content-Type", "application/pdf");

        // Instruct the browser to open the PDF file as an attachment or inline
        Response.AddHeader("Content-Disposition", String.Format("attachment; filename=Execute_Acrobat_JavaScript.pdf; size={0}", outPdfBuffer.Length.ToString()));

        // Write the PDF document buffer to HTTP response
        Response.BinaryWrite(outPdfBuffer);

        // End the HTTP response and stop the current page processing
        Response.End();
    }
    finally
    {
        // Close the PDF document
        if (pdfDocument != null)
            pdfDocument.Close();
    }
}