The sample demonstrates how to get started with Spire.PDF for WPF.

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

using System.Windows;

namespace HelloWorld_PDF_WPF
{
    /// 
    /// Interaction logic for App.xaml
    /// 
    public partial class App : Application
    {
    }
}

Namespace HelloWorld_PDF_WPF
	''' 
	''' Interaction logic for App.xaml
	''' 
	Partial Public Class App
		Inherits Application
	End Class
End Namespace

<Window x:Class="HelloWorld_PDF_WPF.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
  <Grid>

    <Button Content="Run" Height="23" HorizontalAlignment="Left" Margin="394,266,0,0" Name="btn1" VerticalAlignment="Top" Width="75" Click="btn1_Click" />
        <TextBlock Height="35" HorizontalAlignment="Left" Margin="12,142,0,0" Name="textBlock1" Text="This sample demonstrates how to use Spire.Pdf for WPF" VerticalAlignment="Top" Width="479" FontSize="14" FontStyle="Oblique" Foreground="#FFF51919" FontWeight="Bold" />
    </Window>
</UserControl>    

using System.Windows;

using Spire.Pdf;
using Spire.Pdf.Graphics;

namespace HelloWorld_PDF_WPF
{
    /// 
    /// Interaction logic for MainWindow.xaml
    /// 
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void btn1_Click(object sender, RoutedEventArgs e)
        {
            //create a new pdf document
            PdfDocument pdfDoc = new PdfDocument();

            //add one blank page
            PdfPageBase page = pdfDoc.Pages.Add();

            //draw a string on the blank page
            PdfFont font = new PdfFont(PdfFontFamily.Courier, 14f);
            page.Canvas.DrawString("This sample demonstrates how to use Spire.Pdf for WPF!", font, PdfBrushes.Blue, new System.Drawing.PointF(0, 20f));

            //save the pdf document
            pdfDoc.SaveToFile(@"..\..\sample.pdf");

            //launch the pdf document
            System.Diagnostics.Process.Start(@"..\..\sample.pdf");
        }
    }
}

Imports Spire.Pdf
Imports Spire.Pdf.Graphics

Namespace HelloWorld_PDF_WPF
	''' 
	''' Interaction logic for MainWindow.xaml
	''' 
	Partial Public Class MainWindow
		Inherits Window
		Public Sub New()
			InitializeComponent()
		End Sub

		Private Sub btn1_Click(ByVal sender As Object, ByVal e As RoutedEventArgs)
			'create a new pdf document
			Dim pdfDoc As New PdfDocument()

			'add one blank page
			Dim page As PdfPageBase = pdfDoc.Pages.Add()

			'draw a string on the blank page
			Dim font As New PdfFont(PdfFontFamily.Courier, 14f)
			page.Canvas.DrawString("This sample demonstrates how to use Spire.Pdf for WPF!", font, PdfBrushes.Blue, New PointF(0, 20f))

			'save the pdf document
			pdfDoc.SaveToFile("..\..\sample.pdf")

			'launch the pdf document
			Process.Start("..\..\sample.pdf")
		End Sub
	End Class
End Namespace