diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/App.config b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/App.config
new file mode 100644
index 0000000..193aecc
--- /dev/null
+++ b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/App.config
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/CheckPDFSignatureformFieldSigned.csproj b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/CheckPDFSignatureformFieldSigned.csproj
new file mode 100644
index 0000000..4d9a1e7
--- /dev/null
+++ b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/CheckPDFSignatureformFieldSigned.csproj
@@ -0,0 +1,101 @@
+
+
+
+
+ Debug
+ AnyCPU
+ {1E372C90-E825-4BEA-8E5E-C06248940355}
+ WinExe
+ CheckPDFSignatureformFieldSigned
+ CheckPDFSignatureformFieldSigned
+ v4.8
+ 512
+ true
+ true
+
+
+
+ AnyCPU
+ true
+ full
+ false
+ bin\Debug\
+ DEBUG;TRACE
+ prompt
+ 4
+
+
+ AnyCPU
+ pdbonly
+ true
+ bin\Release\
+ TRACE
+ prompt
+ 4
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Form
+
+
+ Form1.cs
+
+
+
+
+ WPFuserControl.xaml
+
+
+ Form1.cs
+
+
+ ResXFileCodeGenerator
+ Resources.Designer.cs
+ Designer
+
+
+ True
+ Resources.resx
+ True
+
+
+
+ SettingsSingleFileGenerator
+ Settings.Designer.cs
+
+
+ True
+ Settings.settings
+ True
+
+
+
+
+
+
+
+ Designer
+ MSBuild:Compile
+
+
+
+
\ No newline at end of file
diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/CheckPDFSignatureformFieldSigned.sln b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/CheckPDFSignatureformFieldSigned.sln
new file mode 100644
index 0000000..03f5941
--- /dev/null
+++ b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/CheckPDFSignatureformFieldSigned.sln
@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.12.35707.178 d17.12
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CheckPDFSignatureformFieldSigned", "CheckPDFSignatureformFieldSigned.csproj", "{1E372C90-E825-4BEA-8E5E-C06248940355}"
+EndProject
+Global
+ GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ Debug|Any CPU = Debug|Any CPU
+ Release|Any CPU = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(ProjectConfigurationPlatforms) = postSolution
+ {1E372C90-E825-4BEA-8E5E-C06248940355}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {1E372C90-E825-4BEA-8E5E-C06248940355}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {1E372C90-E825-4BEA-8E5E-C06248940355}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {1E372C90-E825-4BEA-8E5E-C06248940355}.Release|Any CPU.Build.0 = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(SolutionProperties) = preSolution
+ HideSolutionNode = FALSE
+ EndGlobalSection
+EndGlobal
diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/CheckPDFSignatureformFieldSigned_NET.csproj b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/CheckPDFSignatureformFieldSigned_NET.csproj
new file mode 100644
index 0000000..83cb700
--- /dev/null
+++ b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/CheckPDFSignatureformFieldSigned_NET.csproj
@@ -0,0 +1,16 @@
+
+
+
+ WinExe
+ net8.0-windows
+ enable
+ true
+ true
+ enable
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/CheckPDFSignatureformFieldSigned_NET.sln b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/CheckPDFSignatureformFieldSigned_NET.sln
new file mode 100644
index 0000000..b3b3910
--- /dev/null
+++ b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/CheckPDFSignatureformFieldSigned_NET.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.9.34622.214
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CheckPDFSignatureformFieldSigned_NET", "CheckPDFSignatureformFieldSigned_NET.csproj", "{0E7C8E61-5F9D-4317-850E-F841C21D0171}"
+EndProject
+Global
+ GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ Debug|Any CPU = Debug|Any CPU
+ Release|Any CPU = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(ProjectConfigurationPlatforms) = postSolution
+ {0E7C8E61-5F9D-4317-850E-F841C21D0171}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {0E7C8E61-5F9D-4317-850E-F841C21D0171}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {0E7C8E61-5F9D-4317-850E-F841C21D0171}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {0E7C8E61-5F9D-4317-850E-F841C21D0171}.Release|Any CPU.Build.0 = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(SolutionProperties) = preSolution
+ HideSolutionNode = FALSE
+ EndGlobalSection
+ GlobalSection(ExtensibilityGlobals) = postSolution
+ SolutionGuid = {6EBA9397-6151-47C2-BF88-D860FE2C4795}
+ EndGlobalSection
+EndGlobal
diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Data/1-output.pdf b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Data/1-output.pdf
new file mode 100644
index 0000000..4ceb4c1
Binary files /dev/null and b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Data/1-output.pdf differ
diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Data/1.pdf b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Data/1.pdf
new file mode 100644
index 0000000..ad1ce70
Binary files /dev/null and b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Data/1.pdf differ
diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Form1.Designer.cs b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Form1.Designer.cs
new file mode 100644
index 0000000..fd83598
--- /dev/null
+++ b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Form1.Designer.cs
@@ -0,0 +1,105 @@
+namespace CheckPDFSignatureformFieldSigned
+{
+ partial class Form1
+ {
+ ///
+ /// Required designer variable.
+ ///
+ private System.ComponentModel.IContainer components = null;
+
+ ///
+ /// Clean up any resources being used.
+ ///
+ /// true if managed resources should be disposed; otherwise, false.
+ protected override void Dispose(bool disposing)
+ {
+ if (disposing && (components != null))
+ {
+ components.Dispose();
+ }
+ base.Dispose(disposing);
+ }
+
+ #region Windows Form Designer generated code
+
+ ///
+ /// Required method for Designer support - do not modify
+ /// the contents of this method with the code editor.
+ ///
+ private void InitializeComponent()
+ {
+ this.tableLayoutPanel1 = new System.Windows.Forms.TableLayoutPanel();
+ this.panel1 = new System.Windows.Forms.Panel();
+ this.btnSubmit = new System.Windows.Forms.Button();
+ this.btnSignature = new System.Windows.Forms.Button();
+ this.tableLayoutPanel1.SuspendLayout();
+ this.panel1.SuspendLayout();
+ this.SuspendLayout();
+ //
+ // tableLayoutPanel1
+ //
+ this.tableLayoutPanel1.ColumnCount = 1;
+ this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 100F));
+ this.tableLayoutPanel1.Controls.Add(this.panel1, 0, 1);
+ this.tableLayoutPanel1.Dock = System.Windows.Forms.DockStyle.Fill;
+ this.tableLayoutPanel1.Location = new System.Drawing.Point(0, 0);
+ this.tableLayoutPanel1.Name = "tableLayoutPanel1";
+ this.tableLayoutPanel1.RowCount = 2;
+ this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 80.22222F));
+ this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 19.77778F));
+ this.tableLayoutPanel1.Size = new System.Drawing.Size(800, 450);
+ this.tableLayoutPanel1.TabIndex = 0;
+ //
+ // panel1
+ //
+ this.panel1.Controls.Add(this.btnSubmit);
+ this.panel1.Controls.Add(this.btnSignature);
+ this.panel1.Dock = System.Windows.Forms.DockStyle.Fill;
+ this.panel1.Location = new System.Drawing.Point(3, 364);
+ this.panel1.Name = "panel1";
+ this.panel1.Size = new System.Drawing.Size(794, 83);
+ this.panel1.TabIndex = 1;
+ //
+ // btnSubmit
+ //
+ this.btnSubmit.Location = new System.Drawing.Point(146, 3);
+ this.btnSubmit.Name = "btnSubmit";
+ this.btnSubmit.Size = new System.Drawing.Size(149, 81);
+ this.btnSubmit.TabIndex = 1;
+ this.btnSubmit.Text = "Submit";
+ this.btnSubmit.UseVisualStyleBackColor = true;
+ this.btnSubmit.Click += new System.EventHandler(this.btnSubmit_Click);
+ //
+ // btnSignature
+ //
+ this.btnSignature.Location = new System.Drawing.Point(3, 3);
+ this.btnSignature.Name = "btnSignature";
+ this.btnSignature.Size = new System.Drawing.Size(125, 81);
+ this.btnSignature.TabIndex = 0;
+ this.btnSignature.Text = "Signature";
+ this.btnSignature.UseVisualStyleBackColor = true;
+ this.btnSignature.Click += new System.EventHandler(this.btnSignature_Click);
+ //
+ // Form1
+ //
+ this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 16F);
+ this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+ this.ClientSize = new System.Drawing.Size(800, 450);
+ this.Controls.Add(this.tableLayoutPanel1);
+ this.Name = "Form1";
+ this.Text = "Form1";
+ this.tableLayoutPanel1.ResumeLayout(false);
+ this.panel1.ResumeLayout(false);
+ this.ResumeLayout(false);
+
+ }
+
+ #endregion
+
+ private System.Windows.Forms.TableLayoutPanel tableLayoutPanel1;
+ private System.Windows.Forms.Button btnSignature;
+ private System.Windows.Forms.Panel panel1;
+ private System.Windows.Forms.Button btnSubmit;
+ }
+}
+
diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Form1.cs b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Form1.cs
new file mode 100644
index 0000000..3409bbd
--- /dev/null
+++ b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Form1.cs
@@ -0,0 +1,124 @@
+using Syncfusion.Pdf.Interactive;
+using Syncfusion.Pdf.Parsing;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using System.Windows.Forms.Integration;
+
+namespace CheckPDFSignatureformFieldSigned
+{
+ public partial class Form1 : Form
+ {
+ ElementHost elementHost = null;
+ WPFuserControl wpfControl = null;
+ string inputFilePath,outputFilePath;
+ public Form1()
+ {
+ InitializeComponent();
+ this.Load += Form1_Load;
+ }
+
+ private void Form1_Load(object sender, EventArgs e)
+ {
+ elementHost = new ElementHost();
+ elementHost.Margin = new Padding(0, 0, 0, 0);
+ elementHost.Region = new Region();
+ elementHost.BackColor = System.Drawing.Color.White;
+ elementHost.AutoSize = true;
+ elementHost.Size = this.Size;
+ elementHost.Dock = DockStyle.Fill;
+
+ //this.Controls.Add(elementHost);
+ tableLayoutPanel1.Controls.Add(elementHost);
+
+ wpfControl = new WPFuserControl();
+ elementHost.Child = wpfControl;
+
+ this.WindowState = FormWindowState.Maximized;
+ }
+
+ private void btnSignature_Click(object sender, EventArgs e)
+ {
+#if NETCOREAPP
+ inputFilePath = @"../../../Data/1.pdf";
+ outputFilePath = @"../../../Data/1-output.pdf";
+#else
+ inputFilePath = @"../../Data/1.pdf";
+ outputFilePath = @"../../Data/1-output.pdf";
+#endif
+ wpfControl.LoadDocument(inputFilePath, outputFilePath);
+ }
+
+ private void btnSubmit_Click(object sender, EventArgs e)
+ {
+ bool isSigned = false;
+ PdfLoadedDocument loadedDocument = wpfControl.pdfViewer.LoadedDocument;
+ if (loadedDocument.Form != null && loadedDocument.Form.Fields.Count > 0)
+ {
+ foreach (var field in loadedDocument.Form.Fields)
+ {
+ if (field is PdfLoadedSignatureField)
+ {
+ PdfLoadedSignatureField signatureField = field as PdfLoadedSignatureField;
+ if (signatureField.Page != null && signatureField.Page.Annotations.Count > 0)
+ {
+ foreach (var annotation in signatureField.Page.Annotations)
+ {
+ if (annotation is PdfLoadedInkAnnotation)
+ {
+ PdfLoadedInkAnnotation signature = annotation as PdfLoadedInkAnnotation;
+ if (signature.Name != signatureField.Name)
+ {
+ isSigned = false;
+ }
+ else
+ {
+ isSigned = true;
+ break;
+ }
+ }
+ else if (annotation is PdfInkAnnotation)
+ {
+ PdfInkAnnotation signature = annotation as PdfInkAnnotation;
+ if (signature.Name != signatureField.Name)
+ {
+ isSigned = false;
+ }
+ else
+ {
+ isSigned = true;
+ break;
+ }
+ }
+ }
+ if (!isSigned)
+ {
+ break;
+ }
+ }
+ else
+ {
+ isSigned = false;
+ break;
+ }
+ }
+ }
+
+ if (!isSigned)
+ {
+ MessageBox.Show("There is some signature required");
+ }
+ else
+ {
+ MessageBox.Show("All signatures are completed!");
+ }
+ }
+ }
+ }
+}
diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Form1.resx b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Form1.resx
new file mode 100644
index 0000000..1af7de1
--- /dev/null
+++ b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Form1.resx
@@ -0,0 +1,120 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ text/microsoft-resx
+
+
+ 2.0
+
+
+ System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
+
+
+ System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
+
+
\ No newline at end of file
diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Program.cs b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Program.cs
new file mode 100644
index 0000000..91ce6e6
--- /dev/null
+++ b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Program.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace CheckPDFSignatureformFieldSigned
+{
+ internal static class Program
+ {
+ ///
+ /// The main entry point for the application.
+ ///
+ [STAThread]
+ static void Main()
+ {
+ Application.EnableVisualStyles();
+ Application.SetCompatibleTextRenderingDefault(false);
+ Application.Run(new Form1());
+ }
+ }
+}
diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Properties/AssemblyInfo.cs b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..0aaa876
--- /dev/null
+++ b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Properties/AssemblyInfo.cs
@@ -0,0 +1,27 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyCopyright("Copyright © 2025")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components. If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("1e372c90-e825-4bea-8e5e-c06248940355")]
+
+// Version information for an assembly consists of the following four values:
+//
+// Major Version
+// Minor Version
+// Build Number
+// Revision
+//
diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Properties/Resources.Designer.cs b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Properties/Resources.Designer.cs
new file mode 100644
index 0000000..b182323
--- /dev/null
+++ b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Properties/Resources.Designer.cs
@@ -0,0 +1,63 @@
+//------------------------------------------------------------------------------
+//
+// This code was generated by a tool.
+// Runtime Version:4.0.30319.42000
+//
+// Changes to this file may cause incorrect behavior and will be lost if
+// the code is regenerated.
+//
+//------------------------------------------------------------------------------
+
+namespace CheckPDFSignatureformFieldSigned.Properties {
+ using System;
+
+
+ ///
+ /// A strongly-typed resource class, for looking up localized strings, etc.
+ ///
+ // This class was auto-generated by the StronglyTypedResourceBuilder
+ // class via a tool like ResGen or Visual Studio.
+ // To add or remove a member, edit your .ResX file then rerun ResGen
+ // with the /str option, or rebuild your VS project.
+ [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "17.0.0.0")]
+ [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+ [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+ internal class Resources {
+
+ private static global::System.Resources.ResourceManager resourceMan;
+
+ private static global::System.Globalization.CultureInfo resourceCulture;
+
+ [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+ internal Resources() {
+ }
+
+ ///
+ /// Returns the cached ResourceManager instance used by this class.
+ ///
+ [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+ internal static global::System.Resources.ResourceManager ResourceManager {
+ get {
+ if (object.ReferenceEquals(resourceMan, null)) {
+ global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("CheckPDFSignatureformFieldSigned.Properties.Resources", typeof(Resources).Assembly);
+ resourceMan = temp;
+ }
+ return resourceMan;
+ }
+ }
+
+ ///
+ /// Overrides the current thread's CurrentUICulture property for all
+ /// resource lookups using this strongly typed resource class.
+ ///
+ [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+ internal static global::System.Globalization.CultureInfo Culture {
+ get {
+ return resourceCulture;
+ }
+ set {
+ resourceCulture = value;
+ }
+ }
+ }
+}
diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Properties/Resources.resx b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Properties/Resources.resx
new file mode 100644
index 0000000..af7dbeb
--- /dev/null
+++ b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Properties/Resources.resx
@@ -0,0 +1,117 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ text/microsoft-resx
+
+
+ 2.0
+
+
+ System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
+
+
+ System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
+
+
\ No newline at end of file
diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Properties/Settings.Designer.cs b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Properties/Settings.Designer.cs
new file mode 100644
index 0000000..6befcaa
--- /dev/null
+++ b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Properties/Settings.Designer.cs
@@ -0,0 +1,26 @@
+//------------------------------------------------------------------------------
+//
+// This code was generated by a tool.
+// Runtime Version:4.0.30319.42000
+//
+// Changes to this file may cause incorrect behavior and will be lost if
+// the code is regenerated.
+//
+//------------------------------------------------------------------------------
+
+namespace CheckPDFSignatureformFieldSigned.Properties {
+
+
+ [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+ [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "17.12.0.0")]
+ internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {
+
+ private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+
+ public static Settings Default {
+ get {
+ return defaultInstance;
+ }
+ }
+ }
+}
diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Properties/Settings.settings b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Properties/Settings.settings
new file mode 100644
index 0000000..3964565
--- /dev/null
+++ b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/Properties/Settings.settings
@@ -0,0 +1,7 @@
+
+
+
+
+
+
+
diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/WPFuserControl.xaml b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/WPFuserControl.xaml
new file mode 100644
index 0000000..efc8ee6
--- /dev/null
+++ b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/WPFuserControl.xaml
@@ -0,0 +1,19 @@
+
+
+
+
+
+
+
+
+
diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/WPFuserControl.xaml.cs b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/WPFuserControl.xaml.cs
new file mode 100644
index 0000000..013440e
--- /dev/null
+++ b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/WPFuserControl.xaml.cs
@@ -0,0 +1,73 @@
+using Syncfusion.Pdf.Interactive;
+using Syncfusion.Pdf.Parsing;
+using Syncfusion.Pdf;
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+using UserControl = System.Windows.Controls.UserControl;
+
+namespace CheckPDFSignatureformFieldSigned
+{
+ ///
+ /// Interaction logic for WPFuserControl.xaml
+ ///
+ public partial class WPFuserControl : UserControl
+ {
+ public WPFuserControl()
+ {
+ InitializeComponent();
+ }
+
+ private void UserControl_Loaded(object sender, RoutedEventArgs e)
+ {
+ pdfViewer.IsEnabled = false;
+ }
+
+ public void LoadDocument(string inputFile, string outputFile)
+ {
+ PdfLoadedDocument loadedDocument = new PdfLoadedDocument(inputFile);
+
+ var pages = loadedDocument.Pages;
+ PdfLoadedPage page = pages[0] as PdfLoadedPage;
+
+ PdfSignatureField signature = new PdfSignatureField(page, "Signature");
+ signature.Bounds = new RectangleF(155, 590, 150, 24);
+ signature.ToolTip = "Sign Here";
+ loadedDocument.Form.Fields.Add(signature);
+
+ PdfTextBoxField vehicleEntry = new PdfTextBoxField(page, "VehicleEntry");
+ vehicleEntry.Bounds = new RectangleF(128, 400, 75, 24);
+ vehicleEntry.BorderColor = new Syncfusion.Pdf.Graphics.PdfColor(0, 1, 1, 0);
+ //Add the form field to the document.
+ loadedDocument.Form.Fields.Add(vehicleEntry);
+
+ PdfSignatureField initials = new PdfSignatureField(page, "Initials");
+ initials.Bounds = new RectangleF(40, 775, 75, 24);
+ initials.ToolTip = "Initials Here";
+ loadedDocument.Form.Fields.Add(initials);
+
+ using (FileStream output = new FileStream(outputFile, FileMode.OpenOrCreate, FileAccess.ReadWrite))
+ {
+ loadedDocument.Save(output);
+ }
+
+ pdfViewer.Load(outputFile);
+ pdfViewer.ZoomMode = Syncfusion.Windows.PdfViewer.ZoomMode.FitPage;
+ pdfViewer.Visibility = Visibility.Visible;
+ pdfViewer.IsEnabled = true;
+ }
+ }
+}
diff --git a/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/packages.config b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/packages.config
new file mode 100644
index 0000000..2cf5008
--- /dev/null
+++ b/How-to/Validate-Signature-Form-Fields/CheckPDFSignatureformFieldSigned/packages.config
@@ -0,0 +1,9 @@
+
+
+
+
+
+
+
+
+
\ No newline at end of file