[Obsolete("Use the Print(PdfPrinterSettings printerSettings, bool showPrintStatus = true) overload of this method instead.")]
public virtual void Print(
    PdfPrinterSettings printerSettings,
    bool showPrintStatus,
    int maxPrintingDpi
)

<Obsolete("Use the Print(PdfPrinterSettings printerSettings, bool showPrintStatus = true) overload of this method instead.")>
Public Overridable Sub Print(
    printerSettings As PdfPrinterSettings,
    showPrintStatus As Boolean,
    maxPrintingDpi As Integer
)

<Window
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:dxpdf="http://schemas.devexpress.com/winfx/2008/xaml/pdf" 
        x:Class="LoadPDFDocument.MainWindow"
        Title="MainWindow" Height="350" Width="525">

    <Grid>
        <dxpdf:PdfViewerControl x:Name="Viewer" DocumentLoaded="Viewer_DocumentLoaded" />
    </Grid>
</Window>

using DevExpress.Pdf;
using System.IO;
using System.Reflection;
using System.Windows;

namespace LoadPDFDocument {

    public partial class MainWindow : Window {

        public MainWindow() {
            InitializeComponent();
            Stream stream = GetResourceStream("LoadPDFDocument.Demo.pdf");
            Viewer.DocumentSource = stream;

        }
        static Stream GetResourceStream(string resourceName) {
            return Assembly.GetExecutingAssembly().GetManifestResourceStream(resourceName);
        }

        private void Viewer_DocumentLoaded(object sender, RoutedEventArgs e) {
            PdfPrinterSettings settings = new PdfPrinterSettings();
            settings.PageNumbers = new int[] { 2, 3, 4 };
            settings.PageOrientation = PdfPrintPageOrientation.Landscape;
            settings.PrintingDpi = 400;
            settings.ScaleMode = PdfPrintScaleMode.ActualSize;
            Viewer.Print(settings, false, 600);
        }
    }
}

Imports DevExpress.Pdf
Imports System.IO
Imports System.Reflection
Imports System.Windows

Namespace LoadPDFDocument

    Public Partial Class MainWindow
        Inherits Window

        Public Sub New()
            InitializeComponent()
            Dim stream As Stream = GetResourceStream("LoadPDFDocument.Demo.pdf")

            Viewer.DocumentSource = stream
        End Sub
        Private Shared Function GetResourceStream(resourceName As String) As Stream
            Return Assembly.GetExecutingAssembly().GetManifestResourceStream(resourceName)
        End Function

        Private Sub Viewer_DocumentLoaded(sender As Object, e As RoutedEventArgs)
            Dim settings As New PdfPrinterSettings()
            settings.PageNumbers = New Integer() {2, 3, 4}
            settings.PageOrientation = PdfPrintPageOrientation.Landscape
            settings.PrintingDpi = 400
            settings.ScaleMode = PdfPrintScaleMode.ActualSize
            Viewer.Print(settings, False, 600)
        End Sub
    End Class
End Namespace