The sample demonstrates how to convert a PDF document to a booklet.

Download Booklet.pdf

using System;
using Spire.Pdf;

namespace Booklet
{
    class Program
    {
        static void Main(string[] args)
        {
            //Create a pdf document.
            PdfDocument doc = new PdfDocument();

            String srcPdf = @"Sample2.pdf";
            float width = PdfPageSize.A4.Width * 2;
            float height = PdfPageSize.A4.Height;
            doc.CreateBooklet(srcPdf, width, height, true);

            //Save pdf file.
            doc.SaveToFile("Booklet.pdf");
            doc.Close();

            //Launching the Pdf file.
            System.Diagnostics.Process.Start("Booklet.pdf");
        }
    }
}

Imports Spire.Pdf

Namespace Booklet
    Friend Class Program
        Shared Sub Main(ByVal args() As String)
            'Create a pdf document.
            Dim doc As New PdfDocument()

            Dim srcPdf As String = "Sample2.pdf"
            Dim width As Single = PdfPageSize.A4.Width * 2
            Dim height As Single = PdfPageSize.A4.Height
            doc.CreateBooklet(srcPdf, width, height, True)

            'Save pdf file.
            doc.SaveToFile("Booklet.pdf")
            doc.Close()

            'Launching the Pdf file.
            Process.Start("Booklet.pdf")
        End Sub
    End Class
End Namespace

The sample demonstrates how to extract images and text from PDF document.

(NO screenshot)

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Text;
using Spire.Pdf;

namespace Extraction
{
    class Program
    {
        static void Main(string[] args)
        {
            //Create a pdf document.
            PdfDocument doc = new PdfDocument();
            doc.LoadFromFile(@"Sample2.pdf");

            StringBuilder buffer = new StringBuilder();
            IList<Image> images = new List<Image>();

            foreach (PdfPageBase page in doc.Pages)
            {
                buffer.Append(page.ExtractText());
                foreach (Image image in page.ExtractImages())
                {
                    images.Add(image);
                }
            }

            doc.Close();

            //save text
            String fileName = "TextInPdf.txt";
            File.WriteAllText(fileName, buffer.ToString());

            //save image
            int index = 0;
            foreach (Image image in images)
            {
                String imageFileName
                    = String.Format("Image-{0}.png", index++);
                image.Save(imageFileName, ImageFormat.Png);
            }

            //Launching the Text file.
            System.Diagnostics.Process.Start(fileName);
        }

    }
}

Imports System.Collections.Generic
Imports System.Drawing
Imports System.Drawing.Imaging
Imports System.IO
Imports System.Text
Imports Spire.Pdf

Namespace Extraction
    Friend Class Program
        Shared Sub Main(ByVal args() As String)
            'Create a pdf document.
            Dim doc As New PdfDocument()
            doc.LoadFromFile("Sample2.pdf")

            Dim buffer As New StringBuilder()
            Dim images As IList(Of Image) = New List(Of Image)()

            For Each page As PdfPageBase In doc.Pages
                buffer.Append(page.ExtractText())
                For Each image As Image In page.ExtractImages()
                    images.Add(image)
                Next image
            Next page

            doc.Close()

            'save text
            Dim fileName As String = "TextInPdf.txt"
            File.WriteAllText(fileName, buffer.ToString())

            'save image
            Dim index As Integer = 0
            For Each image As Image In images
                Dim imageFileName As String = String.Format("Image-{0}.png", index)
                index += 1
                image.Save(imageFileName, ImageFormat.Png)
            Next image

            'Launching the Text file.
            Process.Start(fileName)
        End Sub

    End Class
End Namespace

The sample demonstrates how to merge multiple PDF documents to one PDF document.

(NO screenshot)

using System;
using Spire.Pdf;

namespace MergeDocuments
{
    class Program
    {
        static void Main(string[] args)
        {
            //pdf document list
            String[] files = new String[]
            {
                @"Sample3.pdf",
                @"Sample2.pdf",
                @"Sample1.pdf"
            };
            //open pdf documents            
            PdfDocument[] docs = new PdfDocument[files.Length];
            for (int i = 0; i < files.Length; i++)
            {
                docs[i] = new PdfDocument(files[i]);
            }

            //append document
            docs[0].AppendPage(docs[1]);

            //import page
            for (int i = 0; i < docs[2].Pages.Count; i = i + 2)
            {
                docs[0].InsertPage(docs[2], i);
            }

            //Save pdf file.
            docs[0].SaveToFile("MergeDocuments.pdf");

            //close
            foreach (PdfDocument doc in docs)
            {
                doc.Close();
            }

            //Launching the Pdf file.
            System.Diagnostics.Process.Start("MergeDocuments.pdf");
        }
    }
}

Imports Spire.Pdf

Namespace MergeDocuments
    Friend Class Program
        Shared Sub Main(ByVal args() As String)
            'pdf document list
            Dim files() As String = {"Sample3.pdf", "Sample2.pdf", "Sample1.pdf"}
            'open pdf documents            
            Dim docs(files.Length - 1) As PdfDocument
            For i As Integer = 0 To files.Length - 1
                docs(i) = New PdfDocument(files(i))
            Next i

            'append document
            docs(0).AppendPage(docs(1))

            'import page
            For i As Integer = 0 To docs(2).Pages.Count - 1 Step 2
                docs(0).InsertPage(docs(2), i)
            Next i

            'Save pdf file.
            docs(0).SaveToFile("MergeDocuments.pdf")

            'close
            For Each doc As PdfDocument In docs
                doc.Close()
            Next doc

            'Launching the Pdf file.
            Process.Start("MergeDocuments.pdf")
        End Sub

    End Class
End Namespace

The sample demonstrates how to split one PDF document to multiple PDF documents.

(NO screenshot)

using System;
using Spire.Pdf;

namespace SplitDocument
{
    class Program
    {
        static void Main(string[] args)
        {
            //open pdf document
            PdfDocument doc = new PdfDocument(@"Sample3.pdf");

            String pattern = "SplitDocument-{0}.pdf";
            doc.Split(pattern);

            String lastPageFileName
                = String.Format(pattern, doc.Pages.Count - 1);

            doc.Close();

            //Launching the Pdf file.
            System.Diagnostics.Process.Start(lastPageFileName);
        }
    }
}

Imports Spire.Pdf

Namespace SplitDocument
    Friend Class Program
        Shared Sub Main(ByVal args() As String)
            'open pdf document
            Dim doc As New PdfDocument("Sample3.pdf")

            Dim pattern As String = "SplitDocument-{0}.pdf"
            doc.Split(pattern)

            Dim lastPageFileName As String = String.Format(pattern, doc.Pages.Count - 1)

            doc.Close()

            'Launching the Pdf file.
            Process.Start(lastPageFileName)
        End Sub
    End Class
End Namespace

The sample demonstrates how to Merge PDF documents in Silverlight via Spire.XLS.

(No Screenshots)

<Application xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
             x:Class="MergePdfTest.App">
    <Application.Resources>
        
    </Application.Resources>
</Application>

using System;
using System.Windows;

namespace MergePdfTest
{
    public partial class App : Application
    {

        public App()
        {
            this.Startup += this.Application_Startup;
            this.Exit += this.Application_Exit;
            this.UnhandledException += this.Application_UnhandledException;

            InitializeComponent();
        }

        private void Application_Startup(object sender, StartupEventArgs e)
        {
            this.RootVisual = new MainPage();
        }

        private void Application_Exit(object sender, EventArgs e)
        {

        }

        private void Application_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)
        {
            // If the app is running outside of the debugger then report the exception using
            // the browser's exception mechanism. On IE this will display it a yellow alert 
            // icon in the status bar and Firefox will display a script error.
            if (!System.Diagnostics.Debugger.IsAttached)
            {

                // NOTE: This will allow the application to continue running after an exception has been thrown
                // but not handled. 
                // For production applications this error handling should be replaced with something that will 
                // report the error to the website and stop the application.
                e.Handled = true;
                Deployment.Current.Dispatcher.BeginInvoke(delegate { ReportErrorToDOM(e); });
            }
        }

        private void ReportErrorToDOM(ApplicationUnhandledExceptionEventArgs e)
        {
            try
            {
                string errorMsg = e.ExceptionObject.Message + e.ExceptionObject.StackTrace;
                errorMsg = errorMsg.Replace('"', '\'').Replace("\r\n", @"\n");

                System.Windows.Browser.HtmlPage.Window.Eval("throw new Error(\"Unhandled Error in Silverlight Application " + errorMsg + "\");");
            }
            catch (Exception)
            {
            }
        }
    }
}

Imports System.Windows

Namespace MergePdfTest
	Partial Public Class App
		Inherits Application

		Public Sub New()
			AddHandler Me.Startup, AddressOf Application_Startup
			AddHandler Me.Exit, AddressOf Application_Exit
			AddHandler Me.UnhandledException, AddressOf Application_UnhandledException

			InitializeComponent()
		End Sub

		Private Sub Application_Startup(ByVal sender As Object, ByVal e As StartupEventArgs)
			Me.RootVisual = New MainPage()
		End Sub

		Private Sub Application_Exit(ByVal sender As Object, ByVal e As EventArgs)

		End Sub

		Private Sub Application_UnhandledException(ByVal sender As Object, ByVal e As ApplicationUnhandledExceptionEventArgs)
			' If the app is running outside of the debugger then report the exception using
			' the browser's exception mechanism. On IE this will display it a yellow alert 
			' icon in the status bar and Firefox will display a script error.
			If Not Debugger.IsAttached Then

				' NOTE: This will allow the application to continue running after an exception has been thrown
				' but not handled. 
				' For production applications this error handling should be replaced with something that will 
				' report the error to the website and stop the application.
				e.Handled = True
				Deployment.Current.Dispatcher.BeginInvoke(Sub() ReportErrorToDOM(e))
			End If
		End Sub

		Private Sub ReportErrorToDOM(ByVal e As ApplicationUnhandledExceptionEventArgs)
			Try
				Dim errorMsg As String = e.ExceptionObject.Message + e.ExceptionObject.StackTrace
				errorMsg = errorMsg.Replace(""""c, "'"c).Replace(vbCrLf, vbLf)

				System.Windows.Browser.HtmlPage.Window.Eval("throw new Error(""Unhandled Error in Silverlight Application " & errorMsg & """);")
			Catch e1 As Exception
			End Try
		End Sub
	End Class
End Namespace

<UserControl x:Class="MergePdfTest.MainPage"
    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"
    mc:Ignorable="d"
    d:DesignHeight="236" d:DesignWidth="384" xmlns:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk">

    <Grid x:Name="LayoutRoot" Background="#FFCDDEFF" Loaded="LayoutRoot_Loaded" Height="236" Width="380">
        <Button Content="Merge" Height="23" HorizontalAlignment="Left" Margin="278,0,0,30" Name="button1" VerticalAlignment="Bottom" Width="75" Click="button1_Click" />
        >

using System.Linq;
using System.Windows;
using System.Windows.Controls;

using Spire.Pdf;

namespace MergePdfTest
{
    public partial class MainPage : UserControl
    {
        //create two blank pdf files
        PdfDocument document1 = new PdfDocument();
        PdfDocument document2 = new PdfDocument();

        public MainPage()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            //merge the two files
            document1.AppendPage(document2);
            
            //save the result using a SaveFileDialog
            SaveFileDialog saveFileDiaglog = new SaveFileDialog();
            bool? resultSave = saveFileDiaglog.ShowDialog();
            if (resultSave.HasValue && resultSave.Value)
            {
                document1.SaveToStream(saveFileDiaglog.OpenFile());
            }
        }

        private void LayoutRoot_Loaded(object sender, RoutedEventArgs e)
        {
           
        }

        private void button2_Click(object sender, RoutedEventArgs e)
        {
           //new a OpenFileDialog to open the pdf files will be merged
            OpenFileDialog openFileDialog1 = new OpenFileDialog();
            openFileDialog1.Filter = "Pdf Documents (*.pdf)|*.pdf";
            openFileDialog1.FilterIndex = 1;
            openFileDialog1.Multiselect = true;
            bool? userClickedOK = openFileDialog1.ShowDialog();

            //Process input if the user clicked OK.
            if (userClickedOK == true)
            {
                //get the selected files 
                System.IO.Stream fileStream1 = openFileDialog1.Files.ElementAt(0).OpenRead();
                System.IO.Stream filestream2 = openFileDialog1.Files.ElementAt(1).OpenRead();
                document1.LoadFromStream(fileStream1);
                document2.LoadFromStream(filestream2);
            }

        }
    }
}

Imports System.Windows
Imports System.Windows.Controls

Imports Spire.Pdf

Namespace MergePdfTest
	Partial Public Class MainPage
		Inherits UserControl
		'create two blank pdf files
		Private document1 As New PdfDocument()
		Private document2 As New PdfDocument()

		Public Sub New()
			InitializeComponent()
		End Sub

		Private Sub button1_Click(ByVal sender As Object, ByVal e As RoutedEventArgs)
			'merge the two files
			document1.AppendPage(document2)

			'save the result using a SaveFileDialog
			Dim saveFileDiaglog As New SaveFileDialog()
			Dim resultSave? As Boolean = saveFileDiaglog.ShowDialog()
			If resultSave.HasValue AndAlso resultSave.Value Then
				document1.SaveToStream(saveFileDiaglog.OpenFile())
			End If
		End Sub

		Private Sub LayoutRoot_Loaded(ByVal sender As Object, ByVal e As RoutedEventArgs)

		End Sub

		Private Sub button2_Click(ByVal sender As Object, ByVal e As RoutedEventArgs)
		   'new a OpenFileDialog to open the pdf files will be merged
			Dim openFileDialog1 As New OpenFileDialog()
			openFileDialog1.Filter = "Pdf Documents (*.pdf)|*.pdf"
			openFileDialog1.FilterIndex = 1
			openFileDialog1.Multiselect = True
			Dim userClickedOK? As Boolean = openFileDialog1.ShowDialog()

			'Process input if the user clicked OK.
			If userClickedOK = True Then
				'get the selected files 
				Dim fileStream1 As System.IO.Stream = openFileDialog1.Files.ElementAt(0).OpenRead()
				Dim filestream2 As System.IO.Stream = openFileDialog1.Files.ElementAt(1).OpenRead()
				document1.LoadFromStream(fileStream1)
				document2.LoadFromStream(filestream2)
			End If

		End Sub
	End Class
End Namespace