PdfDocument pdf = new PdfDocument();
pdf.LoadFromFile(inputFile);
for (int i = 0; i < pdf.Pages.Count; i++)
{
	PdfPageBase page = pdf.Pages[i];
	PdfAnnotationCollection ancoll = page.Annotations;
	for (int j = 0; j < ancoll.Count; j++)
	{
		PdfRichMediaAnnotationWidget MediaWidget = ancoll[j] as PdfRichMediaAnnotationWidget;
		byte[] data = MediaWidget.RichMediaData;
		string embedFileName = MediaWidget.RichMediaName;
		File.WriteAllBytes(outputFile + embedFileName,data);
	}
}

ChromeHtmlConverter converter = new ChromeHtmlConverter(TestUtil.ChromiumPath);
converter.Logger = new Logger(logFilePath);
//Enable IsEnabled to output logs to the console
//Logger.IsEnabled = true; 
ConvertOptions options = new ConvertOptions();

annotation.Title = "test";

PdfToMarkdownConverter converter = new PdfToMarkdownConverter(inputFile); converter.MarkdownOptions.IgnoreImage = true; 
converter.ConvertToMarkdown(outputFile);

PdfDocument pdf = new PdfDocument();
pdf.LoadFromFile(inputFile);

X509Certificate2 cert = new X509Certificate2(inputFile_pfx, "e-iceblue");
IPdfSignatureFormatter formatter = new PdfPKCS7Formatter(cert, false);
PdfMDPSignatureMaker pdfMDPSignatureMaker = new PdfMDPSignatureMaker(pdf, formatter);

PdfSignature signature = pdfMDPSignatureMaker.Signature;
signature.Name = "e-iceblue";
signature.ContactInfo = "028-81705109";
signature.Location = "chengdu";
signature.Reason = " this document";

PdfSignatureAppearance appearance = new PdfSignatureAppearance(signature);
appearance.NameLabel = "Signer: ";
appearance.ContactInfoLabel = "ContactInfo: ";
appearance.LocationLabel = "Loaction: ";
appearance.ReasonLabel = "Reason: ";

pdfMDPSignatureMaker.MakeSignature("signName", pdf.Pages[0], 100, 100, 250, 200, appearance);
pdf.SaveToFile(outputFile, FileFormat.PDF);
pdf.Dispose();

PdfDocument pdf = new PdfDocument();
pdf.LoadFromFile(inputFile);
PdfFormWidget widgets = pdf.Form as PdfFormWidget;
for (int i = 0; i < widgets.FieldsWidget.List.Count; i++)
{
    PdfFieldWidget widget = widgets.FieldsWidget.List[i] as PdfFieldWidget;
    if (widget is PdfSignatureFieldWidget)
    {
        string originalName = widget.Name;
        X509Certificate2 cert = new X509Certificate2(inputFile_pfx, "e-iceblue");
        IPdfSignatureFormatter formatter = new PdfPKCS7Formatter(cert, false);

        // PdfMDPSignatureMaker signatureMaker = new PdfMDPSignatureMaker(pdf, formatter);
        PdfOrdinarySignatureMaker signatureMaker = new PdfOrdinarySignatureMaker(pdf, formatter);

        PdfSignature signature = signatureMaker.Signature;
        signature.Name = "E-iceblue";
        signature.ContactInfo = "028-81705109";
        signature.Location = "chengdu";
        signature.Reason = "document";

        PdfSignatureAppearance appearance = new PdfSignatureAppearance(signature);
        appearance.NameLabel = "Signer: ";
        appearance.ContactInfoLabel = "ContactInfo: ";
        appearance.LocationLabel = "Loaction: ";
        appearance.ReasonLabel = "Reason: ";
        appearance.SignatureImage = PdfImage.FromFile(inputFile_Img);
        appearance.GraphicMode = GraphicMode.SignImageAndSignDetail;

        signatureMaker.MakeSignature(originalName, appearance);
    }
}
pdf.SaveToFile(outputFile);
pdf.Dispose();

string chromeLocation = baseDirectory + "chrome\\Chrome-bin\\chrome.exe";
ChromeHtmlConverter converter = new ChromeHtmlConverter(chromeLocation);
ConvertOptions options = new ConvertOptions();
options.Timeout = 10 * 1000;
options.PageSettings = new PageSettings()
{
    PaperWidth = 8.77,
    PaperHeight = 6.20,
    MarginBottom = 0,
    MarginTop = 0,
    MarginLeft = 0,
    MarginRight = 0
    };
converter.ConvertToPdf("https://www.e-iceblue.com/", outputFile, options);

var pdfAsStream = new MemoryStream();
string chromeLocation = baseDirectory + "chrome\\Chrome-bin\\chrome.exe";
ChromeHtmlConverter converter = new ChromeHtmlConverter(chromeLocation);
ConvertOptions options = new ConvertOptions();
options.Timeout = 10 * 1000;
options.PageSettings = new PageSettings()
{
    PaperWidth = 8.77,
    PaperHeight = 6.2,
    MarginBottom = 0,
    MarginTop = 0,
    MarginLeft = 0,
    MarginRight = 0
    };
converter.ConvertToPdf("https://www.e-iceblue.com/", pdfAsStream, options);

pdfDocument.ConvertOptions.SetPdfToXlsxOptions(new XlsxLineLayoutOptions(true, false, false)); //bool convertToMultipleSheet, bool rotatedText, bool splitCell

PdfStandardsConverter converter = new PdfStandardsConverter(stream);
converter.Options.PreserveAllowedMetadata = true;

PdfDocument doc = new PdfDocument("input.pdf");
doc.SaveToFile("output.md", FileFormat.Markdown);