SignatureLineImage

SignOptions.SignatureLineImage property

将在关联中显示的图像SignatureLine. 默认值是无效的.

public byte[] SignatureLineImage { get; set; }

例子

展示如何在文档中添加签名行，然后使用数字证书对其进行签名。

[Description("WORDSNET-16868")]
public static void Sign()
{
    string signeeName = "Ron Williams";
    string srcDocumentPath = MyDir + "Document.docx";
    string dstDocumentPath = ArtifactsDir + "SignDocumentCustom.Sign.docx";
    string certificatePath = MyDir + "morzal.pfx";
    string certificatePassword = "aw";

    CreateSignees();

    Signee signeeInfo = mSignees.Find(c => c.Name == signeeName);

    if (signeeInfo != null)
        SignDocument(srcDocumentPath, dstDocumentPath, signeeInfo, certificatePath, certificatePassword);
    else
        Assert.Fail("Signee does not exist.");
}

/// <summary>
/// 使用提供的签名者信息和 X509 证书创建签名的源文档的副本。
/// </summary>
private static void SignDocument(string srcDocumentPath, string dstDocumentPath,
    Signee signeeInfo, string certificatePath, string certificatePassword)
{
    Document document = new Document(srcDocumentPath);
    DocumentBuilder builder = new DocumentBuilder(document);

    // 配置并插入签名行，即文档中的一个对象，它将显示我们用来签名的签名。
    SignatureLineOptions signatureLineOptions = new SignatureLineOptions
    {
        Signer = signeeInfo.Name, 
        SignerTitle = signeeInfo.Position
    };

    SignatureLine signatureLine = builder.InsertSignatureLine(signatureLineOptions).SignatureLine;
    signatureLine.Id = signeeInfo.PersonId;

    // 首先，我们将保存文档的未签名版本。
    builder.Document.Save(dstDocumentPath);

    CertificateHolder certificateHolder = CertificateHolder.Create(certificatePath, certificatePassword);

    SignOptions signOptions = new SignOptions
    {
        SignatureLineId = signeeInfo.PersonId,
        SignatureLineImage = signeeInfo.Image
    };

    // 用证书签名的版本覆盖我们上面保存的未签名文档。
    DigitalSignatureUtil.Sign(dstDocumentPath, dstDocumentPath, certificateHolder, signOptions);
}

public class Signee
{
    public Guid PersonId { get; set; }
    public string Name { get; set; }
    public string Position { get; set; }
    public byte[] Image { get; set; }

    public Signee(Guid guid, string name, string position, byte[] image)
    {
        PersonId = guid;
        Name = name;
        Position = position;
        Image = image;
    }
}

private static void CreateSignees()
{
    var signImagePath = ImageDir + "Logo.jpg";

    mSignees = new List<Signee>
    {
        new Signee(Guid.NewGuid(), "Ron Williams", "Chief Executive Officer", TestUtil.ImageToByteArray(signImagePath)),
        new Signee(Guid.NewGuid(), "Stephen Morse", "Head of Compliance", TestUtil.ImageToByteArray(signImagePath))
    };
}

private static List<Signee> mSignees;

也可以看看

SignOptions.SignatureLineId SignOptions.SignTime