How to watermark emf/wmf image

How to watermark emf/wmf image

Issue : How to watermark emf/wmf image.

Tips : To properly watermark emf/wmf image, it is needed to use WmfRecorderGraphics2D and EmfRecorderGraphics2D classes to work with graphics in those formats.

Example :

using System;
using System.IO;
using System.Text;
using System.Collections.Generic;



// load an existing EMF with Image.Load
using (var image = Aspose.Imaging.Image.Load(@"template.emf"))
{
    // create and initialize an instance of Graphics class and Initialize an object of SizeF to store image Size
    Aspose.Imaging.FileFormats.Emf.Graphics.EmfRecorderGraphics2D graphics =
          Aspose.Imaging.FileFormats.Emf.Graphics.EmfRecorderGraphics2D.FromEmfImage(
             (Aspose.Imaging.FileFormats.Emf.EmfImage)image);

    var size = image.Size;

    // create an instance of Font. Initialize it with Font Face, Size and Style
    var font = new Aspose.Imaging.Font("Times New Roman", 20, Aspose.Imaging.FontStyle.Bold);
    
    // draw the string on image 
    graphics.DrawString("CONFIDENTIAL", font, Aspose.Imaging.Color.Red, 0, 30);

    Aspose.Imaging.FileFormats.Emf.EmfImage image2 = graphics.EndRecording();
    
    // save output to disc
    image2.Save(@"output.emf");
}  

using System;
using System.IO;
using System.Text;
using System.Collections.Generic;



// load an existing WMF with Image.Load
using (var image = Aspose.Imaging.Image.Load(@"template.wmf"))
{
            Aspose.Imaging.FileFormats.Wmf.Graphics.WmfRecorderGraphics2D wmfGraphics = Aspose.Imaging.FileFormats.Wmf.Graphics.WmfRecorderGraphics2D.FromWmfImage((Aspose.Imaging.FileFormats.Wmf.WmfImage)image);

            var size = image.Size;

            // create an instance of Font. Initialize it with Font Face, Size and Style
            var font = new Aspose.Imaging.Font("Times New Roman", 20, Aspose.Imaging.FontStyle.Bold);            

            // draw the string on image 
            wmfGraphics.DrawString("CONFIDENTIAL", font, Aspose.Imaging.Color.Red, 50, 50);

            Aspose.Imaging.FileFormats.Wmf.WmfImage im2 = wmfGraphics.EndRecording();
            im2.Save(@"output.wmf");
}