''' <summary>
''' Draws an image on PDF page.
''' </summary>
''' <param name="pdfFilename">The filename of PDF document.</param>
''' <param name="imageFilename">The filename of image.</param>
Public Shared Sub DrawImageOnPdfPage(pdfFilename As String, imageFilename As String)
    ' open PDF document
    Using document As New Vintasoft.Imaging.Pdf.PdfDocument(pdfFilename)
        ' open image
        Using image As New Vintasoft.Imaging.VintasoftImage(imageFilename)
            ' get the first page
            Dim page As Vintasoft.Imaging.Pdf.Tree.PdfPage = document.Pages(0)
            ' get PDF graphics of PDF page
            Using graphics As Vintasoft.Imaging.Pdf.Drawing.PdfGraphics = page.GetGraphics()
                ' create image-resource based on image
                Dim imageResource As New Vintasoft.Imaging.Pdf.Tree.PdfImageResource(document, image, Vintasoft.Imaging.Pdf.PdfCompression.Auto)

                ' draw image-resource on PDF page
                graphics.DrawImage(imageResource, New System.Drawing.RectangleF(100, 100, 200, 300))
            End Using
        End Using

        ' save changes to a file
        document.SaveChanges()
    End Using
End Sub

/// <summary>
/// Draws an image on PDF page.
/// </summary>
/// <param name="pdfFilename">The filename of PDF document.</param>
/// <param name="imageFilename">The filename of image.</param>
public static void DrawImageOnPdfPage(string pdfFilename, string imageFilename)
{
    // open PDF document
    using (Vintasoft.Imaging.Pdf.PdfDocument document = 
        new Vintasoft.Imaging.Pdf.PdfDocument(pdfFilename))
    {
        // open image
        using (Vintasoft.Imaging.VintasoftImage image = 
            new Vintasoft.Imaging.VintasoftImage(imageFilename))
        {
            // get the first page
            Vintasoft.Imaging.Pdf.Tree.PdfPage page = document.Pages[0];
            // get PDF graphics of PDF page
            using (Vintasoft.Imaging.Pdf.Drawing.PdfGraphics graphics = page.GetGraphics())
            {
                // create image-resource based on image
                Vintasoft.Imaging.Pdf.Tree.PdfImageResource imageResource = 
                    new Vintasoft.Imaging.Pdf.Tree.PdfImageResource(
                        document, image, Vintasoft.Imaging.Pdf.PdfCompression.Auto);

                // draw image-resource on PDF page
                graphics.DrawImage(imageResource, new System.Drawing.RectangleF(100, 100, 200, 300));
            }
        }

        // save changes to a file
        document.SaveChanges();
    }
}