Add Polyline Annotation

How to add Polyline Annotation in C#

The Polyline annotation enables you to draw shapes and freehand lines like shown at the picture below. 

The annotation API which is the part of Conholdate.Total for .NET, facilitate you to specify the next properties for PolylineAnnotation type:

  • Box - defines annotation position at a document page;
  • Opacity - allows to set annotation opacity;
  • PenColor - defines frame color;
  • PenStyle - defines frame line style (solid, dash, dot etc.);
  • PenWidth - defines frame line width in pixels.
  • SvgPath - SVG path that describes shape.

Follow these steps to add Polyline annotation to document:

  • Instantiate Annotator object with input document path or stream;
  • Instantiate PolylineAnnotation object with desired properties (position, page number, etc);
  • Call Add method and pass PolylineAnnotation object;
  • Call Save method with resultant document path or stream.

The following code demonstrates how to add PolylineAnnotation to the document:

More resources

GitHub Examples

You may easily run the code above and see the feature in action in our GitHub examples:

Add Arrow Annotation