Hi Vinoth548

Refer below link :

Display Watermark on Existing Image on Page Load using C# in ASP.Net

hi i can able to get the water mark.Position of the watermark is to be on top of the image.

Hi Vinoth548,

Please refer below sample.

Namespaces

C#

using System.Drawing;
using System.IO;

VB.Net

Imports System.IO
Imports System.Drawing

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    string fileName = @"C:\Users\anand\Desktop\Jellyfish.tiff";
    string watermarkText = "ASPForums.net";
    Stream stream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);
    System.Drawing.Image image = System.Drawing.Image.FromStream(stream);
    using (Graphics grp = Graphics.FromImage(image))
    {
        Brush brush = new SolidBrush(Color.Red);
        Font font = new Font("Arial", 30.0f, FontStyle.Bold, GraphicsUnit.Pixel);
        SizeF textSize = grp.MeasureString(watermarkText, font);
        Point position = new Point((image.Width - ((int)textSize.Width + 50)), (image.Height - ((int)textSize.Height + 700)));
        grp.DrawString(watermarkText, font, brush, position);
        stream.Dispose();
        File.Delete(fileName);
        image.Save(fileName);
    }
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    Dim fileName As String = "C:\Users\anand\Desktop\Jellyfish.tiff"
    Dim watermarkText As String = "ASPForums.net"
    Dim stream As Stream = New FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read)
    Dim image As System.Drawing.Image = System.Drawing.Image.FromStream(stream)

    Using grp As Graphics = Graphics.FromImage(image)
        Dim brush As Brush = New SolidBrush(Color.Red)
        Dim font As Font = New Font("Arial", 30.0F, FontStyle.Bold, GraphicsUnit.Pixel)
        Dim textSize As SizeF = grp.MeasureString(watermarkText, font)
        Dim position As Point = New Point((image.Width - (CInt(textSize.Width) + 50)), (image.Height - (CInt(textSize.Height) + 700)))
        grp.DrawString(watermarkText, font, brush, position)
        stream.Dispose()
        File.Delete(fileName)
        image.Save(fileName)
    End Using
End Sub

Screenshot