diff --git a/Security/Decrypting-encrypted-PDF-document/.NET/Decrypting-encrypted-PDF-document.sln b/Security/Decrypting-encrypted-PDF-document/.NET/Decrypting-encrypted-PDF-document.sln
new file mode 100644
index 00000000..7725f2f8
--- /dev/null
+++ b/Security/Decrypting-encrypted-PDF-document/.NET/Decrypting-encrypted-PDF-document.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36408.4 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Decrypting-encrypted-PDF-document", "Decrypting-encrypted-PDF-document\Decrypting-encrypted-PDF-document.csproj", "{93EFCE7C-2111-4150-AB8D-5E675DADB782}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{93EFCE7C-2111-4150-AB8D-5E675DADB782}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{93EFCE7C-2111-4150-AB8D-5E675DADB782}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{93EFCE7C-2111-4150-AB8D-5E675DADB782}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{93EFCE7C-2111-4150-AB8D-5E675DADB782}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {ACAC9DFE-C228-4D63-BEB8-B3F16EDEA60F}
+	EndGlobalSection
+EndGlobal
diff --git a/Security/Decrypting-encrypted-PDF-document/.NET/Decrypting-encrypted-PDF-document/Data/Input.pdf b/Security/Decrypting-encrypted-PDF-document/.NET/Decrypting-encrypted-PDF-document/Data/Input.pdf
new file mode 100644
index 00000000..51caf9b1
Binary files /dev/null and b/Security/Decrypting-encrypted-PDF-document/.NET/Decrypting-encrypted-PDF-document/Data/Input.pdf differ
diff --git a/Security/Decrypting-encrypted-PDF-document/.NET/Decrypting-encrypted-PDF-document/Decrypting-encrypted-PDF-document.csproj b/Security/Decrypting-encrypted-PDF-document/.NET/Decrypting-encrypted-PDF-document/Decrypting-encrypted-PDF-document.csproj
new file mode 100644
index 00000000..0aed398c
--- /dev/null
+++ b/Security/Decrypting-encrypted-PDF-document/.NET/Decrypting-encrypted-PDF-document/Decrypting-encrypted-PDF-document.csproj
@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>Decrypting_encrypted_PDF_document</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Syncfusion.Pdf.Net.Core" Version="*" />
+  </ItemGroup>
+
+</Project>
diff --git a/Security/Decrypting-encrypted-PDF-document/.NET/Decrypting-encrypted-PDF-document/Output/gitkeep.txt b/Security/Decrypting-encrypted-PDF-document/.NET/Decrypting-encrypted-PDF-document/Output/gitkeep.txt
new file mode 100644
index 00000000..e69de29b
diff --git a/Security/Decrypting-encrypted-PDF-document/.NET/Decrypting-encrypted-PDF-document/Program.cs b/Security/Decrypting-encrypted-PDF-document/.NET/Decrypting-encrypted-PDF-document/Program.cs
new file mode 100644
index 00000000..8d969eb5
--- /dev/null
+++ b/Security/Decrypting-encrypted-PDF-document/.NET/Decrypting-encrypted-PDF-document/Program.cs
@@ -0,0 +1,26 @@
+using Syncfusion.Drawing;
+using Syncfusion.Pdf;
+using Syncfusion.Pdf.Graphics;
+using Syncfusion.Pdf.Parsing;
+using Syncfusion.Pdf.Security;
+
+using (FileStream inputStream = new FileStream(Path.GetFullPath(@"Data/Input.pdf"), FileMode.Open, FileAccess.Read))
+{
+    // Load the encrypted PDF document from the input stream
+    PdfLoadedDocument loadedDocument = new PdfLoadedDocument(inputStream, "syncfusion");
+
+    // Set the document permissions to default (removes any restrictions)
+    loadedDocument.Security.Permissions = PdfPermissionsFlags.Default;
+
+    // Clear the owner and user passwords to decrypt the document
+    loadedDocument.Security.OwnerPassword = string.Empty;
+    loadedDocument.Security.UserPassword = string.Empty;
+
+    using (FileStream outputStream = new FileStream(Path.GetFullPath(@"Output/Output.pdf"), FileMode.Create, FileAccess.Write))
+    {
+        // Save the decrypted PDF document to the output stream
+        loadedDocument.Save(outputStream);
+    }
+    // Close the loaded PDF document and release resources
+    loadedDocument.Close(true);
+}