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watermark in Radeditor

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Editor

This is a migrated thread and some comments may be shown as answers.

6 Answers, 1 is accepted

answered on 17 May 2010, 03:04 PM

Hi Ahmad,

Were you able to run the Giving the uploaded files unique names example? All you need to do is to override the StoreFile method of the FileSystemContentProvider class of RadEditor and run the watermark code of one of the provided demos:
Watermark your images with this VB.NET code,
Creating a Watermarked Photograph with GDI+ for .NET
and
Add a watermark to an image in VB .NET.

Please note that RadEditor does not offer this feature out-of-the box and we do not support it.

Best regards,
Rumen
the Telerik team

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answered on 18 May 2010, 09:47 AM

applywatermarktotheuploadedimage.zip

Hi Ahmad,

Please, find attached the requested working example which demonstrates how to add a watermark to the uploaded image.

Best regards,
Rumen
the Telerik team

Accepted

answered on 19 May 2010, 03:30 PM

addwatermarktouploadedimage.zip

Hi Ahmad,

Thank you for reporting this issue.

To fix it update the code of the StoreFile function as follows:

public override string StoreFile(UploadedFile file, string path, string name, params string[] arguments)

{

System.Drawing.Image objImage = System.Drawing.Image.FromStream(file.InputStream);//From File

int height = objImage.Height;//Actual image width

int width = objImage.Width;//Actual image height

System.Drawing.Bitmap bitmapimage = new System.Drawing.Bitmap(objImage, width, height);// create bitmap with same size of Actual image

System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmapimage);

//Creates a System.Drawing.Color structure from the four ARGB component

//(alpha, red, green, and blue) values. Although this method allows a 32-bit value

// to be passed for each component, the value of each component is limited to 8 bits.

//Adding watermark text on image

//SolidBrush brush = new SolidBrush(Color.FromArgb(113, 255, 255, 255));

//g.DrawString("WaterMark sample", new Font("Arial", 18, System.Drawing.FontStyle.Bold), brush, 0, 100);

//Adding watermark icon on the image

Bitmap logo = new Bitmap(this.Context.Server.MapPath("~/images/WaterMark.jpg"));

g.DrawImage(logo, new Point(70, 70));

string result = VirtualPathUtility.AppendTrailingSlash(path) + name;

bitmapimage.Save(Context.Server.MapPath(result));

g.Dispose();

bitmapimage.Dispose();

//string result = base.StoreFile(file, path, newFileName, arguments);

return result;

}

For your convenience I have attached the modified project.

Kind regards,
Rumen
the Telerik team