Add Highlight Annotation
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How to add Highlight Annotation in C#
Highlight annotation highlights and comments selected text like shown at the picture below.
Annotation API allows you to specify the next properties for HighlightAnnotation type:
- BackgroundColor - describes annotation background color;
- FontColor - color of annotation text;
- Opacity - allows to set annotation opacity;
- Points - annotation positions set by array of points.
Follow these steps to add Highlight annotation to document:
- Instantiate Annotator object with input document path or stream;
- Instantiate HighlightAnnotation object with desired properties (position, page number, etc);
- Call Add method and pass HighlightAnnotation object;
- Call Save method with resultant document path or stream.
The following code demonstrates how to add HighlightAnnotation to the document:
More resources
GitHub Examples
You may easily run the code above and see the feature in action in our GitHub examples:
- GroupDocs.Annotation for .NET examples, plugins, and showcase
- GroupDocs.Annotation for Java examples, plugins, and showcase
- Document Annotation for .NET MVC UI Example
- Document Annotation for .NET App WebForms UI Modern Example
- Document Annotation for Java App Dropwizard UI Modern Example
- Document Annotation for Java Spring UI Example