42194-How to insert signature in Word document through mail merge?

Mail-Merge/Insert_Signature_in_Word_Document_through_MailMerge/.NET/Insert_Signature_in_Word_Document_through_MailMerge.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.37216.2 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Insert_Signature_in_Word_Document_through_MailMerge", "Insert_Signature_in_Word_Document_through_MailMerge\Insert_Signature_in_Word_Document_through_MailMerge.csproj", "{EE7EAFF2-30BA-F32D-1FD6-D033BF4D8200}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{EE7EAFF2-30BA-F32D-1FD6-D033BF4D8200}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{EE7EAFF2-30BA-F32D-1FD6-D033BF4D8200}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{EE7EAFF2-30BA-F32D-1FD6-D033BF4D8200}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{EE7EAFF2-30BA-F32D-1FD6-D033BF4D8200}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {D921C376-3534-4617-B8EF-5CBA4C2FC9DA}
+	EndGlobalSection
+EndGlobal

Mail-Merge/Insert_Signature_in_Word_Document_through_MailMerge/.NET/Insert_Signature_in_Word_Document_through_MailMerge/Insert_Signature_in_Word_Document_through_MailMerge.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <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\Signature.gif">
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
+		</None>
+		<None Update="Output\.gitkeep">
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
+		</None>
+	</ItemGroup>
+
+</Project>

Mail-Merge/Insert_Signature_in_Word_Document_through_MailMerge/.NET/Insert_Signature_in_Word_Document_through_MailMerge/Output/gitkeep.txt

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+

Mail-Merge/Insert_Signature_in_Word_Document_through_MailMerge/.NET/Insert_Signature_in_Word_Document_through_MailMerge/Program.cs

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+using Syncfusion.DocIO;
+using Syncfusion.DocIO.DLS;
+
+namespace Insert_Signature_in_Word_Document_through_MailMerge
+{
+    class Program
+    {
+
+        static void Main(string[] args)
+        {
+            // Load the word document
+            using (FileStream fileStream = new FileStream(Path.GetFullPath("../../../Data/Template.docx"), FileMode.Open, FileAccess.Read))
+            {
+                using (WordDocument document = new WordDocument(fileStream, FormatType.Docx))
+                {
+                    string[] fieldNames = { "Signature" };
+                    string[] fieldValues = { "signature.gif" };
+
+                    document.MailMerge.MergeImageField += MailMerge_MergeSignature;
+                    //Execute mail merge in the Word document
+                    document.MailMerge.Execute(fieldNames, fieldValues);
+                    using (FileStream outputStream = new FileStream(Path.GetFullPath("../../../Output/Result.docx"), FileMode.Create, FileAccess.Write))
+                    {
+                        //Saves the stream as Word file
+                        document.Save(outputStream, FormatType.Docx);
+                    }
+                }
+            }
+        }
+        /// <summary>
+        /// Binds the image from file system and fit within text box during Mail merge process by using MergeImageFieldEventHandler.
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="args"></param>
+        private static void MailMerge_MergeSignature(object sender, MergeImageFieldEventArgs args)
+        {
+            if (args.FieldName == "Signature")
+            {
+                string productFileName = args.FieldValue.ToString();
+                byte[] imageBytes = File.ReadAllBytes(@"Data/" + productFileName);
+                MemoryStream imageStream = new MemoryStream(imageBytes);
+                args.ImageStream = imageStream;
+                // Get the picture to be merged
+                WPicture picture = args.Picture;
+
+                WTextBox textbox = args.CurrentMergeField.OwnerParagraph.OwnerTextBody.Owner as WTextBox;
+                // check whether the picture is inside the text box
+                if (textbox != null)
+                {
+                    // Get the text box format
+                    WTextBoxFormat textBoxFormat = textbox.TextBoxFormat;
+
+                    if (textBoxFormat != null)
+                    {
+                        // Resize width
+                        if (picture.Width != textBoxFormat.Width)
+                        {
+                            float widthScale = textBoxFormat.Width / picture.Width * 100;
+                            picture.WidthScale = widthScale;
+                        }
+
+                        // Resize height
+                        if (picture.Height != textBoxFormat.Height)
+                        {
+                            float heightScale = textBoxFormat.Height / picture.Height * 100;
+                            picture.HeightScale = heightScale;
+                        }
+                    }
+                }
+            }
+        }
+    }
+}