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Merged
MathanKumarVaradhaRajaPerumal merged 1 commit into from
Oct 6, 2026
Merged

162875-Updated the Digital Signature sample examples #607

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14 changes: 14 additions & 0 deletions ...Signature/Add-digital-signature-invisible/.NET/Add-digital-signature-invisible/Program.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,20 @@ static void Main(string[] args)
SignatureSettings settings = new SignatureSettings();
settings.Comments = "Approved";
settings.SignTime = DateTime.Now;
//Sets the application version used to create the signature.
settings.ApplicationVersion = "16.0";
//Sets the Office version recorded with the signature.
settings.OfficeVersion = "16.0";
//Sets the Windows version recorded with the signature.
settings.WindowsVersion = "10.0";
//Sets the horizontal resolution recorded with the signature.
settings.HorizontalResolution = 1920;
//Sets the vertical resolution recorded with the signature.
settings.VerticalResolution = 1080;
//Sets the color depth recorded with the signature.
settings.ColorDepth = 32;
//Sets the cryptographic provider identifier.
settings.ProviderId = new Guid("00000000-0000-0000-0000-000000000000");
//Adds an invisible digital signature to the document using the certificate and settings.
document.AddDigitalSignature(certificate, settings);
//Saves the Word document to file.
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4 changes: 4 additions & 0 deletions Digital-Signature/Insert-signature-line/.NET/Insert-signature-line/Program.cs
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Expand Up @@ -24,8 +24,12 @@ static void Main(string[] args)
settings.SignerTitle = "Manager";
settings.Email = "john.doe@example.com";
settings.Instructions = "Please review and sign.";
//Specifies whether the signer can attach comments when signing.
settings.AllowComments = true;
//Specifies whether the sign date is displayed on the signature line.
settings.ShowDate = true;
//Specifies whether the default signing instructions are used (false uses the custom Instructions value).
settings.DefaultInstructions = false;
//Inserts the signature line into the new paragraph with the specified dimensions.
IWPicture picture = signatureParagraph.AppendSignatureLine(settings, 200, 100);
//Saves the Word document to file.
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106 changes: 100 additions & 6 deletions Digital-Signature/Inspect-digital-signature/.NET/Inspect-digital-signature/Program.cs
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Expand Up @@ -13,22 +13,116 @@ static void Main(string[] args)
// Gets the digital signature collection in the document.
OfficeDigitalSignatureCollection signatures = document.DigitalSignatures;

// Gets the number of digital signatures in the document.
int signatureCount = signatures.Count;
Console.WriteLine("Signature count: " + signatureCount);

// Checks whether every digital signature in the collection is valid.
bool allValid = signatures.IsValid;
Console.WriteLine("All signatures are valid: " + allValid);

// Displays details of each signature.
foreach (OfficeDigitalSignature signature in signatures)
{
Console.WriteLine("Signature comments: " + signature.Comments);
Console.WriteLine("Time of signing: " + signature.SigningTime);
Console.WriteLine("Subject name: " +
signature.Certificate.Subject);
Console.WriteLine("Issuer name: " +
signature.Certificate.Issuer);
// Checks whether the signature is valid.
bool isValid = signature.IsValid;
// Gets the comments recorded with the signature.
string comments = signature.Comments;
// Gets the timestamp recorded with the signature.
DateTime signingTime = signature.SigningTime;
// Gets the application version recorded with the signature.
string applicationVersion = signature.ApplicationVersion;
// Gets the Office version recorded with the signature.
string officeVersion = signature.OfficeVersion;
// Gets the Windows version recorded with the signature.
string windowsVersion = signature.WindowsVersion;
// Gets the color depth recorded with the signature.
int colorDepth = signature.ColorDepth;
// Gets the horizontal resolution recorded with the signature.
float horizontalResolution = signature.HorizontalResolution;
// Gets the vertical resolution recorded with the signature.
float verticalResolution = signature.VerticalResolution;
// Gets the raw signature value bytes.
byte[] signatureValue = signature.SignatureValue;
// Gets the certificate used to create the signature.
OfficeDigitalSignatureCertificate certificate = signature.Certificate;

Console.WriteLine("Signature is valid: " + isValid);
Console.WriteLine("Comments: " + comments);
Console.WriteLine("Signing time: " + signingTime);
Console.WriteLine("Application version: " + applicationVersion);
Console.WriteLine("Office version: " + officeVersion);
Console.WriteLine("Windows version: " + windowsVersion);
Console.WriteLine("Color depth: " + colorDepth);
Console.WriteLine("Horizontal resolution: " + horizontalResolution);
Console.WriteLine("Vertical resolution: " + verticalResolution);
Console.WriteLine("Signature value length: " + (signatureValue != null ? signatureValue.Length : 0));

if (certificate != null)
{
// Gets the certificate subject.
string subject = certificate.Subject;
// Gets the certificate issuer.
string issuer = certificate.Issuer;
// Gets the certificate serial number.
string serialNumber = certificate.SerialNumber;
// Gets the certificate thumbprint.
string thumbprint = certificate.Thumbprint;
// Gets the date the certificate is valid from.
DateTime validFrom = certificate.ValidFrom;
// Gets the date the certificate is valid to.
DateTime validTo = certificate.ValidTo;

Console.WriteLine("Subject name: " + subject);
Console.WriteLine("Issuer name: " + issuer);
Console.WriteLine("Serial number: " + serialNumber);
Console.WriteLine("Thumbprint: " + thumbprint);
Console.WriteLine("Valid from: " + validFrom);
Console.WriteLine("Valid to: " + validTo);
}

Console.WriteLine();
}

// Retrieves a specific signature by index from the collection.
if (signatures.Count > 0)
{
OfficeDigitalSignature firstSignature = signatures[0];
Console.WriteLine("First signature comments: " + firstSignature.Comments);
}

// Walks the document body and reads the properties of any signature line shapes.
foreach (WSection section in document.Sections)
{
foreach (WParagraph paragraph in section.Paragraphs)
{
foreach (Entity entity in paragraph.ChildEntities)
{
if (entity is WPicture picture && picture.IsSignatureLine)
{
OfficeSignatureLine signatureLine = picture.SignatureLine;

// Gets the unique identifier of the signature line.
Guid id = signatureLine.Id;
// Gets the instructions displayed to the signer.
string instructions = signatureLine.Instructions;
// Gets whether the signer can attach comments when signing.
bool allowComments = signatureLine.AllowComments;
// Gets whether the sign date is displayed on the signature line.
bool showDate = signatureLine.ShowDate;
// Gets whether the signature line has been signed.
bool isSigned = signatureLine.IsSigned;

Console.WriteLine("Signature line id: " + id);
Console.WriteLine("Signature line instructions: " + instructions);
Console.WriteLine("Signature line allow comments: " + allowComments);
Console.WriteLine("Signature line show date: " + showDate);
Console.WriteLine("Signature line is signed: " + isSigned);
}
}
}
}

// Closes the document.
document.Close();
}
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6 changes: 1 addition & 5 deletions Digital-Signature/Sign-signature-line/.NET/Sign-signature-line/Program.cs
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Expand Up @@ -9,9 +9,7 @@ class Program
static void Main(string[] args)
{
//Opens an existing Word document with signature line.
using (WordDocument document =
new WordDocument(
Path.GetFullPath(@"Data\Template.docx")))
using (WordDocument document = new WordDocument(Path.GetFullPath(@"Data\Template.docx")))
{
WPicture picture = null;
OfficeSignatureLine signatureLine = null;
Expand All @@ -30,11 +28,9 @@ static void Main(string[] args)
break;
}
}

if (picture != null)
break;
}

if (picture != null)
break;
}
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