162875-Added GitHub Examples for Digital Signature Feature in .NET Word Library

Digital-Signature/Add-digital-signature-invisible/.NET/Add-digital-signature-invisible.slnx

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+<Solution>
+  <Project Path="Add-digital-signature-invisible/Add-digital-signature-invisible.csproj" />
+</Solution>

Digital-Signature/Add-digital-signature-invisible/.NET/Add-digital-signature-invisible/Add-digital-signature-invisible.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net10.0</TargetFramework>
+    <RootNamespace>Add_digital_signature_invisible</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="Syncfusion.DocIO.Net.Core" Version="*" />
+	</ItemGroup>
+
+	<ItemGroup>
+		<None Update="Data\Template.docx">
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
+		</None>
+		<None Update="Data\certificate.pfx">
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
+		</None>
+		<None Update="Output\.gitkeep">
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
+		</None>
+	</ItemGroup>
+
+</Project>

Digital-Signature/Add-digital-signature-invisible/.NET/Add-digital-signature-invisible/Output/.gitkeep

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+

Digital-Signature/Add-digital-signature-invisible/.NET/Add-digital-signature-invisible/Program.cs

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+using Syncfusion.DocIO;
+using Syncfusion.DocIO.DLS;
+using Syncfusion.Office;
+
+namespace Add_digital_signature_invisible
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            //Opens an existing Word document.
+            WordDocument document = new WordDocument(Path.GetFullPath(@"Data\Template.docx"));
+            //Loads the signing certificate from disk.
+            OfficeDigitalSignatureCertificate certificate = new OfficeDigitalSignatureCertificate(Path.GetFullPath(@"Data\certificate.pfx"), "password123");
+            //Configures signature settings.
+            SignatureSettings settings = new SignatureSettings();
+            settings.Comments = "Approved";
+            settings.SignTime = DateTime.Now;
+            //Adds an invisible digital signature to the document using the certificate and settings.
+            document.AddDigitalSignature(certificate, settings);
+            //Saves the Word document to file.
+            document.Save(Path.GetFullPath(@"Output\Result.docx"), FormatType.Docx);
+            //Closes the document
+            document.Close();
+        }
+    }
+}

Digital-Signature/Insert-signature-line/.NET/Insert-signature-line.slnx

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+<Solution>
+  <Project Path="Insert-signature-line/Insert-signature-line.csproj" />
+</Solution>

Digital-Signature/Insert-signature-line/.NET/Insert-signature-line/Insert-signature-line.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net10.0</TargetFramework>
+    <RootNamespace>Insert_signature_line</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="Syncfusion.DocIO.Net.Core" Version="*" />
+	</ItemGroup>
+
+	<ItemGroup>
+		<None Update="Data\Template.docx">
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
+		</None>
+		<None Update="Output\.gitkeep">
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
+		</None>
+	</ItemGroup>	
+
+
+</Project>

Digital-Signature/Insert-signature-line/.NET/Insert-signature-line/Output/.gitkeep

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+

Digital-Signature/Insert-signature-line/.NET/Insert-signature-line/Program.cs

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+using Syncfusion.DocIO;
+using Syncfusion.DocIO.DLS;
+using Syncfusion.Office;
+
+namespace Insert_signature_line
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            //Opens an existing Word document.
+            WordDocument document = new WordDocument(Path.GetFullPath(@"Data\Template.docx"));
+            //Gets the first section of the document.
+            IWSection section = document.Sections[0];
+            //Adds new paragraph to the section.
+            IWParagraph paragraph = section.AddParagraph();
+            //Adds new text to the paragraph
+            paragraph.AppendText("Please sign below: ");
+            //Adds a new paragraph that will host the signature line.
+            IWParagraph signatureParagraph = section.AddParagraph();
+            //Configures the signature line settings.
+            SignatureLineSettings settings = new SignatureLineSettings();
+            settings.Signer = "John Doe";
+            settings.SignerTitle = "Manager";
+            settings.Email = "john.doe@example.com";
+            settings.Instructions = "Please review and sign.";
+            settings.AllowComments = true;
+            settings.ShowDate = true;
+            //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.
+            document.Save(Path.GetFullPath(@"Output\Result.docx"), FormatType.Docx);
+            //Closes the document
+            document.Close();
+        }
+    }
+}
+

Digital-Signature/Inspect-digital-signature/.NET/Inspect-digital-signature.slnx

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+<Solution>
+  <Project Path="Inspect-digital-signature/Inspect-digital-signature.csproj" />
+</Solution>

Digital-Signature/Inspect-digital-signature/.NET/Inspect-digital-signature/Inspect-digital-signature.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net10.0</TargetFramework>
+    <RootNamespace>Inspect_digital_signature</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="Syncfusion.DocIO.Net.Core" Version="*" />
+	</ItemGroup>
+
+	<ItemGroup>
+		<None Update="Data\SignedDocument.docx">
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
+		</None>
+	</ItemGroup>
+
+</Project>

Digital-Signature/Inspect-digital-signature/.NET/Inspect-digital-signature/Program.cs

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+using Syncfusion.DocIO;
+using Syncfusion.DocIO.DLS;
+using Syncfusion.Office;
+
+namespace Inspect_digital_signature
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            //Opens the signed Word document.
+            WordDocument document = new WordDocument(Path.GetFullPath(@"Data\SignedDocument.docx"));
+            // Gets the digital signature collection in the document.
+            OfficeDigitalSignatureCollection signatures = document.DigitalSignatures;
+
+            // 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);
+                Console.WriteLine();
+            }
+
+            // Closes the document.
+            document.Close();
+        }
+    }
+}
+

Digital-Signature/Remove-digital-signature/.NET/Remove-digital-signature.slnx

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+<Solution>
+  <Project Path="Remove-digital-signature/Remove-digital-signature.csproj" />
+</Solution>

Digital-Signature/Remove-digital-signature/.NET/Remove-digital-signature/Output/.gitkeep

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+

Digital-Signature/Remove-digital-signature/.NET/Remove-digital-signature/Program.cs

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+using Syncfusion.DocIO;
+using Syncfusion.DocIO.DLS;
+using Syncfusion.Office;
+
+namespace Remove_digital_signature
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            //Opens the signed Word document.
+            WordDocument document = new WordDocument(Path.GetFullPath(@"Data\SignedDocument.docx"));
+            //Removes all digital signatures from the document.
+            document.RemoveAllDigitalSignatures();
+            //Saves the Word document to file.
+            document.Save(Path.GetFullPath(@"Output\Result.docx"), FormatType.Docx);
+            //Closes the document
+            document.Close();
+        }
+    }
+}
+

Digital-Signature/Remove-digital-signature/.NET/Remove-digital-signature/Remove-digital-signature.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net10.0</TargetFramework>
+    <RootNamespace>Remove_digital_signature</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="Syncfusion.DocIO.Net.Core" Version="*" />
+	</ItemGroup>
+
+	<ItemGroup>
+		<None Update="Data\SignedDocument.docx">
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
+		</None>
+		<None Update="Output\.gitkeep">
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
+		</None>
+	</ItemGroup>
+
+</Project>

Digital-Signature/Sign-multiple-signature-lines/.NET/Sign-multiple-signature-lines.slnx

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+<Solution>
+  <Project Path="Sign-multiple-signature-lines/Sign-multiple-signature-lines.csproj" />
+</Solution>

Digital-Signature/Sign-multiple-signature-lines/.NET/Sign-multiple-signature-lines/Output/.gitkeep

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+

Digital-Signature/Sign-multiple-signature-lines/.NET/Sign-multiple-signature-lines/Program.cs

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+using Syncfusion.DocIO;
+using Syncfusion.DocIO.DLS;
+using Syncfusion.Office;
+
+namespace Sign_multiple_signature_lines
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            // Opens an existing Word document and adds signature lines.
+            Dictionary<Guid, string> signatureInfo;
+            using (WordDocument document = new WordDocument(Path.GetFullPath(@"Data\Template.docx")))
+            {
+                // Gets the last section of the document.
+                IWSection section = document.LastSection;
+
+                // Stores the signature line IDs and corresponding signature image paths.
+                signatureInfo = new Dictionary<Guid, string>();
+
+                // Defines the signers.
+                string[] signers = { "Tony", "Steve", "Bruce" };
+
+                // Defines the signature images corresponding to each signer.
+                string[] images =
+                {
+                    Path.GetFullPath(@"Data\TonySignature.png"),
+                    Path.GetFullPath(@"Data\SteveSignature.png"),
+                    Path.GetFullPath(@"Data\BruceSignature.png")
+                };
+
+                // Adds a signature line for each signer.
+                for (int i = 0; i < signers.Length; i++)
+                {
+                    IWParagraph paragraph = section.AddParagraph();
+
+                    IWPicture picture = paragraph.AppendSignatureLine(
+                        new SignatureLineSettings()
+                        {
+                            Signer = signers[i],
+                            SignerTitle = "Approver",
+                            Email = signers[i] + "@example.com",
+                            Instructions = "Please review and sign.",
+                            ShowDate = true
+                        },
+                        192,
+                        96);
+
+                    // Gets the unique identifier of the inserted signature line.
+                    Guid signatureLineId = ((WPicture)picture).SignatureLine.Id;
+
+                    // Maps the signature line to its corresponding signature image.
+                    signatureInfo.Add(signatureLineId, images[i]);
+                }
+
+                // Saves the document after adding the signature lines.
+                document.Save(Path.GetFullPath(@"Output\Result.docx"), FormatType.Docx);
+            }
+
+            // Loads the signing certificate.
+            OfficeDigitalSignatureCertificate certificate =
+                new OfficeDigitalSignatureCertificate(
+                    Path.GetFullPath(@"Data\certificate.pfx"),
+                    "password123");
+
+            // Opens the saved document to sign each signature line.
+            using (WordDocument document = new WordDocument(Path.GetFullPath(@"Output\Result.docx")))
+            {
+                // Signs each signature line using its corresponding signature image.
+                foreach (KeyValuePair<Guid, string> item in signatureInfo)
+                {
+                    SignatureSettings settings = new SignatureSettings()
+                    {
+                        SignatureLineId = item.Key,
+                        SignatureLineImage = File.ReadAllBytes(item.Value),
+                        Comments = "Approved",
+                        SignTime = DateTime.Now
+                    };
+
+                    document.AddDigitalSignature(certificate, settings);
+                }
+
+                // Saves the signed document.
+                document.Save(Path.GetFullPath(@"Output\Result.docx"), FormatType.Docx);
+            }
+        }
+    }
+}
+

Digital-Signature/Sign-multiple-signature-lines/.NET/Sign-multiple-signature-lines/Sign-multiple-signature-lines.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net10.0</TargetFramework>
+    <RootNamespace>Sign_multiple_signature_lines</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="Syncfusion.DocIO.Net.Core" Version="*" />
+	</ItemGroup>
+
+	<ItemGroup>
+		<None Update="Data\Template.docx">
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
+		</None>
+		<None Update="Data\certificate.pfx">
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
+		</None>
+		<None Update="Data\TonySignature.png">
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
+		</None>
+		<None Update="Data\SteveSignature.png">
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
+		</None>
+		<None Update="Data\BruceSignature.png">
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
+		</None>
+		<None Update="Output\.gitkeep">
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
+		</None>
+	</ItemGroup>
+</Project>

Digital-Signature/Sign-signature-line/.NET/Sign-signature-line.slnx

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+<Solution>
+  <Project Path="Sign-signature-line/Sign-signature-line.csproj" />
+</Solution>

Digital-Signature/Sign-signature-line/.NET/Sign-signature-line/Output/.gitkeep

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+