How to: Load a PDF Document from a Stream

• May 16, 2019

The following example illustrates how to load a document into the PDF Viewer from a stream at runtime.

To accomplish this task: create a FileStream object with the specified file path to open the existing file, and call one of the PdfViewer.LoadDocument overloaded method with this stream object passed as a parameter.

View Example

Form1.cs

using System.IO;
using System.Windows.Forms;

namespace LoadDocumentFromStream {
    public partial class Form1 : Form {
        public Form1() {
            InitializeComponent();

            // Load a document from the stream.
            FileStream stream = new FileStream("..\\..\\Demo.pdf", FileMode.Open);
            pdfViewer1.LoadDocument(stream);
        }
    }
}

Form1.vb

Imports System.IO
Imports System.Windows.Forms

Namespace LoadDocumentFromStream
    Partial Public Class Form1
        Inherits Form

        Public Sub New()
            InitializeComponent()

            ' Load a document from the stream.
            Dim stream As New FileStream("..\..\Demo.pdf", FileMode.Open)
            pdfViewer1.LoadDocument(stream)
        End Sub
    End Class
End Namespace