How to add Watermark Text on Image in ASP.Net c#
In this article, we will make a copyright text on
image in asp.net c#
Source Code:-
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="watermarkonuploadimage.aspx.cs" Inherits="watermarkonuploadimage" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<fieldset style="width:
300px">
<legend>Add
Watermark Text on Upload Image </legend>
<asp:FileUpload ID="FileUpload1" runat="server" />
<br /><br />
<asp:Button ID="btnupload" Text="Upload" runat="server" OnClick="btnupload_Click" />
</fieldset>
</form>
</body>
</html>
Code behind(C#):-
using
System;
using
System.Collections.Generic;
using
System.Drawing;
using
System.Drawing.Imaging;
using
System.IO;
using
System.Linq;
using
System.Web;
using
System.Web.UI;
using
System.Web.UI.WebControls;
public partial class watermarkonuploadimage :
System.Web.UI.Page
{
protected void
Page_Load(object sender, EventArgs e)
{
}
protected void
btnupload_Click(object sender, EventArgs e)
{
string
watermarkText = "© www.neerajcodesolutions.com";
string
fileName = Path.GetFileNameWithoutExtension(FileUpload1.PostedFile.FileName) + ".png";
using (Bitmap bmp
= new Bitmap(FileUpload1.PostedFile.InputStream, false))
{
using (Graphics grp
= Graphics.FromImage(bmp))
{
Brush
brush = new SolidBrush(Color.Red);
Font font
= new System.Drawing.Font("Arial",
40, FontStyle.Bold, GraphicsUnit.Pixel);
SizeF
textSize = new SizeF();
textSize =
grp.MeasureString(watermarkText, font);
Point
position = new Point((bmp.Width - ((int)textSize.Width + 10)),
(bmp.Height - ((int)textSize.Height + 10)));
grp.DrawString(watermarkText,
font, brush, position);
using (MemoryStream
memoryStream = new MemoryStream())
{
bmp.Save(memoryStream, ImageFormat.Png);
memoryStream.Position = 0;
Response.Clear();
Response.ContentType = "image/png";
Response.AddHeader("Content-Disposition", "attachment;
filename=" + fileName);
memoryStream.WriteTo(Response.OutputStream);
Response.Flush();
Response.Close();
Response.End();
}
}
}
}
}
Out-put:-
How to add Watermark Text on Image in ASP.Net c#
Reviewed by NEERAJ SRIVASTAVA
on
9:31:00 PM
Rating:
Reviewed by NEERAJ SRIVASTAVA
on
9:31:00 PM
Rating:
No comments: