992849: Added Sample for print collate support

Printing-Examples/Print_Collate/App.xaml

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+<Application x:Class="Print_Collate.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:Print_Collate"
+             StartupUri="MainWindow.xaml">
+    <Application.Resources>
+
+    </Application.Resources>
+</Application>

Printing-Examples/Print_Collate/App.xaml.cs

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+using System.Configuration;
+using System.Data;
+using System.Windows;
+
+namespace Print_Collate
+{
+    /// <summary>
+    /// Interaction logic for App.xaml
+    /// </summary>
+    public partial class App : Application
+    {
+    }
+
+}

Printing-Examples/Print_Collate/AssemblyInfo.cs

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+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None,            //where theme specific resource dictionaries are located
+                                                //(used if a resource is not found in the page,
+                                                // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly   //where the generic resource dictionary is located
+                                                //(used if a resource is not found in the page,
+                                                // app, or any theme specific resource dictionaries)
+)]

Printing-Examples/Print_Collate/MainWindow.xaml

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+<Window x:Class="Print_Collate.MainWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Print_Collate" xmlns:PdfViewer="clr-namespace:Syncfusion.Windows.PdfViewer;assembly=Syncfusion.PdfViewer.WPF"
+        mc:Ignorable="d"
+        Title="MainWindow" Height="450" Width="800">
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto"/>
+            <RowDefinition Height="*"/>
+        </Grid.RowDefinitions>
+        <Button Content="Button" HorizontalAlignment="Left" Margin="10" Grid.Row="0" VerticalAlignment="Top" Click="Button_Click"/>
+        <PdfViewer:PdfViewerControl x:Name="PDFViewer" Grid.Row ="1"/>
+    </Grid>
+</Window>

Printing-Examples/Print_Collate/MainWindow.xaml.cs

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+using Syncfusion.PdfToImageConverter;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Drawing.Printing;
+using System.IO;
+using System.Windows;
+
+namespace Print_Collate
+{
+    /// <summary>
+    /// Interaction logic for MainWindow.xaml
+    /// </summary>
+    public partial class MainWindow : Window
+    {
+        public MainWindow()
+        {
+            InitializeComponent();
+        }
+        private void Button_Click(object sender, RoutedEventArgs e)
+        {
+            PdfToImageConverter imageConverter = new PdfToImageConverter();
+
+            FileStream inputStream = new FileStream("../../../Data/testing.pdf", FileMode.Open, FileAccess.ReadWrite);
+            imageConverter.Load(inputStream);
+
+            int pageCount = imageConverter.PageCount;
+            List<System.Drawing.Image> images = new List<System.Drawing.Image>();
+
+            for (int i = 0; i < pageCount; i++)
+            {
+                Stream outputStream = imageConverter.Convert(i, false, true);
+                Bitmap image = new Bitmap(outputStream);
+                images.Add(new Bitmap(image));
+            }
+
+            PrintImages(images);
+        }
+        private void PrintImages(List<System.Drawing.Image> images)
+        {
+            bool collate = true;
+            short copies = 2;
+            PrintDocument printDoc = new PrintDocument();
+            printDoc.PrinterSettings.Collate = collate;
+            int totalPages = images.Count;
+            int printIndex = 0;
+            printDoc.PrintPage += (s, e) =>
+            {
+                int pageIndex;
+                if (collate)
+                {
+                    // Print full document, then repeat
+                    pageIndex = printIndex % totalPages;
+                }
+                else
+                {
+                    // Print each page multiple times before moving to next
+                    pageIndex = printIndex / copies;
+                }
+
+                e.Graphics.DrawImage(images[pageIndex], e.MarginBounds);
+
+                printIndex++;
+                e.HasMorePages = printIndex < copies * totalPages;
+
+            };
+            printDoc.Print();
+        }
+    }
+}

Printing-Examples/Print_Collate/Print_Collate.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Syncfusion.PdfViewer.WPF" Version="*" />
+    <PackageReference Include="System.Drawing.Common" Version="10.0.1" />
+  </ItemGroup>
+  <Import Project="targets\MultiTargeting.targets" /> 
+</Project>

Printing-Examples/Print_Collate/Print_Collate.slnx

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+<Solution>
+  <Project Path="Print_Collate.csproj" />
+</Solution>

Printing-Examples/Print_Collate/targets/MultiTargeting.targets

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+<Project>
+  <PropertyGroup>
+    <TargetFrameworks>net462;net8.0-windows;net9.0-windows;net10.0-windows</TargetFrameworks>
+    <UseWPF>true</UseWPF>
+    <GenerateAssemblyInfo>False</GenerateAssemblyInfo>
+    <GenerateDocumentationFile>True</GenerateDocumentationFile>
+    <EnableDefaultItems>True</EnableDefaultItems>
+	<EnableDefaultEmbeddedResourceItems>True</EnableDefaultEmbeddedResourceItems>	
+  </PropertyGroup>
+</Project>