Merge pull request #1866 from syncfusion-content/EJ2-994247-LineArrowSettings

994247: Note for line arrow settings

Author: KameshRajendran

Document-Processing/PDF/PDF-Viewer/react/annotation/shape-annotation.md

@@ -110,7 +110,7 @@ root.render(<App />);
 
 ## Add a shape annotation to the PDF document programmatically
 
-The PDF Viewer library allows adding a shape annotation programmatically using the [addAnnotation()](https://ej2.syncfusion.com/react/documentation/api/pdfviewer/annotation/#annotation) method.
+The PDF Viewer library allows adding a shape annotation programmatically using the [addAnnotation()](https://ej2.syncfusion.com/react/documentation/api/pdfviewer/annotation#annotation) method.
 
 Here is an example showing how to add shape annotations programmatically using addAnnotation():
 
@@ -621,4 +621,6 @@ root.render(<App />);
 
 {% endraw %}
 {% endhighlight %}
-{% endtabs %}
+{% endtabs %}
+
+N> In both [Arrow](https://ej2.syncfusion.com/react/documentation/api/pdfviewer/index-default#arrowsettings) and [Line](https://ej2.syncfusion.com/react/documentation/api/pdfviewer/index-default#linesettings) annotations Settings, the Fill Color option is available only when an arrowhead style is applied at the Start or End. If both Start and End arrowhead styles are set to None, lines do not support fill rendering and the Fill Color option remains disabled.