How to add text to scaned image?

I scaned images in my app, and show in RasterImageViewer.

I want to add text to image and save in it.

How to add text to image in RasterImageViewer?

Arg,

What version of LEADTOOLS are you currently using? Also, which framework are you working in? If you are working with CDLL, C++ Class Library, or Winforms you can use the GDI to write text directly to the image.

I uae :
LEADTOOLS 18
.net 4.5
wpf

You can programmatically add a text annotation object to the image by using the following code:
============
AnnTextObject text = new AnnTextObject();
text.Stroke = AnnStroke.Create(AnnSolidColorBrush.Create("Red"), LeadLengthD.Create(2));
text.Font = new AnnFont("Arial", 2);
text.Font.FontStyle = AnnFontStyle.Normal;
text.Font.FontWeight = AnnFontWeight.Bold;
text.Font.FontStretch = AnnFontStretch.Normal;
text.TextForeground = AnnSolidColorBrush.Create("yellow");
text.Font.TextDecoration = AnnTextDecorations.Underline;
text.Fill = AnnSolidColorBrush.Create("transparent");
LeadRectD TextRect  = new LeadRectD(10,10,200,200);
text.Rect = _activeAutomation.Container.Mapper.RectToContainerCoordinates(TextRect);
text.Text = "This TEXT is for Test";
text.HorizontalAlignment = AnnHorizontalAlignment.Center;
text.VerticalAlignment = AnnVerticalAlignment.Center;
text.TextRotate = AnnTextRotate.Rotate0;
_activeAutomation.Container.Children.Add(text);
UpdateLayout();
_activeAutomation.Invalidate(LeadRectD.Empty);
============

After this, you can burn the annotation object to the image by using the AnnWPFRenderingEngine.BurnToRectWithDpi() method.
For a sample code, please refer to the C# WPF annotation demo that ships with the LEADTOOLS v18 SDK. You can find the demo's source code here:
[LEADTOOLS 18 folder]\Examples\DotNet3\CS\AnnotationsDemo
Specially check the code under the _miAnnotationsRealize_Click event.

Thanks,
Maen Badwan
LEADTOOLS Technical Support