952337 Added Get and Set values for PDF annotation sample code

Annotation/Get-value-from-PDF-annotation/.NET/Get-value-from-PDF-annotation.sln

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+
+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}") = "Get-value-from-PDF-annotation", "Get-value-from-PDF-annotation\Get-value-from-PDF-annotation.csproj", "{B83CBD04-0016-419B-BD77-081A35DCF2EB}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{B83CBD04-0016-419B-BD77-081A35DCF2EB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B83CBD04-0016-419B-BD77-081A35DCF2EB}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B83CBD04-0016-419B-BD77-081A35DCF2EB}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B83CBD04-0016-419B-BD77-081A35DCF2EB}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

Annotation/Get-value-from-PDF-annotation/.NET/Get-value-from-PDF-annotation/Get-value-from-PDF-annotation.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>Get_value_from_PDF_annotation</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Syncfusion.Pdf.Net.Core" Version="*" />
+  </ItemGroup>
+
+</Project>

Annotation/Get-value-from-PDF-annotation/.NET/Get-value-from-PDF-annotation/Program.cs

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+using Syncfusion.Pdf.Interactive;
+using Syncfusion.Pdf.Parsing;
+using Syncfusion.Pdf;
+
+// Load the existing PDF document using FileStream
+using (FileStream inputStream = new FileStream(Path.GetFullPath(@"Data/Input.pdf"), FileMode.Open, FileAccess.Read))
+{
+    // Load the PDF document from the input stream
+    using (PdfLoadedDocument loadedDocument = new PdfLoadedDocument(inputStream))
+    {
+        // Access the first page of the document
+        PdfLoadedPage page = loadedDocument.Pages[0] as PdfLoadedPage;
+        // Get the collection of annotations from the page
+        PdfLoadedAnnotationCollection annotations = page.Annotations;
+
+        // Check if at least one annotation exists and it's a popup annotation
+        if (annotations.Count > 0 && annotations[0] is PdfLoadedPopupAnnotation annotation)
+        {
+            // Get the custom value from the annotation
+            List<string> customValue = annotation.GetValues("custom");
+
+            foreach (string value in customValue)
+            {
+                // Print the custom value to the console
+                Console.WriteLine("Custom value from annotation: " + value);
+            } 
+        }
+        // Close the document and release resources
+        loadedDocument.Close(true);
+    }
+}

Annotation/Set-value-from-PDF-annotation/.NET/Set-value-from-PDF-annotation.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}") = "Set-value-from-PDF-annotation", "Set-value-from-PDF-annotation\Set-value-from-PDF-annotation.csproj", "{D4AF6325-8E64-4964-936E-4CA47FB892E4}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{D4AF6325-8E64-4964-936E-4CA47FB892E4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D4AF6325-8E64-4964-936E-4CA47FB892E4}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D4AF6325-8E64-4964-936E-4CA47FB892E4}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D4AF6325-8E64-4964-936E-4CA47FB892E4}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

Annotation/Set-value-from-PDF-annotation/.NET/Set-value-from-PDF-annotation/Program.cs

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+
+using Syncfusion.Pdf.Interactive;
+using Syncfusion.Pdf.Parsing;
+using Syncfusion.Pdf;
+
+// Load the existing PDF document using FileStream
+using (FileStream inputStream = new FileStream(Path.GetFullPath(@"Data/Input.pdf"), FileMode.Open, FileAccess.Read))
+{
+    // Load the PDF document from the input stream
+    using (PdfLoadedDocument ldoc = new PdfLoadedDocument(inputStream))
+    {
+        // Access the first page of the document
+        PdfLoadedPage page = ldoc.Pages[0] as PdfLoadedPage;
+
+        // Get the collection of annotations from the page
+        PdfLoadedAnnotationCollection annotations = page.Annotations;
+
+        // Check if at least one annotation exists and it's a popup annotation
+        if (annotations.Count > 0 && annotations[0] is PdfLoadedPopupAnnotation annotation)
+        {
+            // Set a custom key-value pair in the annotation's metadata
+            annotation.SetValues("custom", "This is the custom data for the annotation");
+        }
+
+        // Save the modified document using a new FileStream
+        using (FileStream outputStream = new FileStream(Path.GetFullPath(@"Output/Output.pdf"), FileMode.Create, FileAccess.Write))
+        {
+            // Save changes to a new PDF file
+            ldoc.Save(outputStream); 
+        }
+        // Close the document and release resources
+        ldoc.Close(true);
+    }
+}

Annotation/Set-value-from-PDF-annotation/.NET/Set-value-from-PDF-annotation/Set-value-from-PDF-annotation.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>Set_value_from_PDF_annotation</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Syncfusion.Pdf.Net.Core" Version="*" />
+  </ItemGroup>
+
+</Project>