How to: Load a PDF Document from a Stream

May 17, 2019

This example shows how to use the DocumentViewerControl.DocumentSource property to load a document from the stream. The stream is obtained from the assembly resources.

Important

When you load a document, the input stream should not be closed until the control finishes using a document (PdfViewerControl.DetachStreamOnLoadComplete is set to false by default).

If you want to close the stream after a document is loaded into the PDF Viewer, set the PdfViewerControl.DetachStreamOnLoadComplete property to true. However, in this case the high rendering performance is not guaranteed.

View Example

MainWindow.xaml.cs
MainWindow.xaml.vb
MainWindow.xaml

csharp

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);
        }
    }
}

Imports System.IO
Imports System.Reflection
Imports System.Windows

Namespace LoadPDFDocument

    Partial Public 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(ByVal resourceName As String) As Stream
            Return System.Reflection.Assembly.GetExecutingAssembly().GetManifestResourceStream(resourceName)
        End Function
    End Class
End Namespace

xaml

<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"/>
    </Grid>
</Window>