How to display PDF in WPF application

Create a new WPF project

1. In the design mode of the Mainwindow.xaml. Add button control and WindowsFormHost Control in the MainWindow.xaml

<Window x:Class="DemoPDFView.MainWindow"

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

        Title="MainWindow" Height="619" Width="700">

    <Grid>

        <Button Name="Btn1" Content="Button" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Margin="126,27,0,0"/>

        <WindowsFormsHost Name="WFH1" HorizontalAlignment="Left" Height="430" VerticalAlignment="Top" Width="492" Margin="10,69,0,0"/>

    </Grid>

</Window>

2. Now Add a UserControl by clicking on Add New Item in the solution Explorer

Go to the design Mode: In the design view of UserControl

1. Right Click on the tool box and Click on “Choose Items”

2. You will get the following “Choose Toolbox Items” window. Go to “COM Components” Tab  and check “Adobe PDF Reader” and click on “OK”

3. You will now find the adobe control in the tool boxes.

 Add the Adobe PDF Reader(axAcroPDF1)control in the form.

Set the width and height properties of the axAcroPDF1 control same as WindowsFormsHost control

That is

In the code behind file Copy and paste the code below InitializeComponent();

Add the line this.axAcroPDF1.LoadFile(filename);

Your userControl class should look like this

public partial class UserControl1 : UserControl

    {

        public UserControl1(string filename)

        {

            InitializeComponent();

            this.axAcroPDF1.LoadFile(filename);

        }

    }

Now in the code behind file of MainWindow.xaml  add the code for the Btn1 button event 

  private void Btn1_Click(object sender, RoutedEventArgs e)

        {

            // Configure open file dialog box

            Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog();

            dlg.FileName = "Document"; // Default file name

            dlg.DefaultExt = ".pdf"; // Default file extension

            dlg.Filter = "pdf files (*.pdf) |*.pdf;"; // Filter files by extension

            // Show open file dialog box

            Nullable<bool> result = dlg.ShowDialog();

            // Process open file dialog box results

            if (result == true)

            {

                // Open document

                string filename = dlg.FileName;

                var uc = new UserControl1(filename);

                this.WFH1.Child = uc;

            }

        }

OUTPUT: