Create highlighted text in PDF document with Visual Basic for .NET and ByteScout PDF SDK

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Highlighting text in a PDF document generated using ByteScout PDF SDK
PDF with hightlighted text  added using ByteScout PDF SDK
This example demonstrates how to add markup annotations using ByteScout PDF SDK.

Program.vb: VB

'*******************************************************************
'       ByteScout PDF SDK
'                                                                   
'       Copyright © 2016 Bytescout, http://www.bytescout.com        
'       ALL RIGHTS RESERVED                                         
'                                                                   
'*******************************************************************

Imports System.Drawing
Imports Bytescout.PDF

''' <summary>
''' This example demonstrates how to add markup annotations.
''' </summary>
Class Program

    Shared Sub Main()

        ' Create new document
        Dim pdfDocument = New Document()
        pdfDocument.RegistrationName = "demo"
		pdfDocument.RegistrationKey = "demo"
        ' Add page
        Dim page = New Page(PaperFormat.A4)
		pdfDocument.Pages.Add(page)

		' Draw sample markup annotations

		Dim squareAnnotation = New SquareAnnotation(20, 20, 80, 80)
		squareAnnotation.BackgroundColor = New ColorRGB(255, 240, 240)
		squareAnnotation.BorderStyle.Style = BorderStyle.Dashed
		squareAnnotation.BorderStyle.DashPattern = New DashPattern(New Single() {3, 1, 3})
		page.Annotations.Add(squareAnnotation)

		Dim circleAnnotation = New CircleAnnotation(120, 20, 80, 80)
		circleAnnotation.BackgroundColor = New ColorRGB(240, 250, 240)
		circleAnnotation.Color = New ColorRGB(128, 0, 128)
		circleAnnotation.BorderEffect.Effect = BorderEffect.Cloudy
		circleAnnotation.BorderEffect.Intensity = 2
		page.Annotations.Add(circleAnnotation)

		Dim lineAnnotation = New LineAnnotation(20, 180, 100, 120)
		lineAnnotation.Color = New ColorRGB(255, 0, 0)
		lineAnnotation.StartLineStyle = LineEndingStyle.Butt
		lineAnnotation.EndLineStyle = LineEndingStyle.OpenArrow
		page.Annotations.Add(lineAnnotation)

		Dim pp = {New PointF(120, 120), New PointF(130, 130), New PointF(140, 120), New PointF(150, 130), New PointF(160, 120), New PointF(170, 130)}
		Dim points = New PointsArray(pp)
		Dim polylineAnnotation = New PolylineAnnotation(points)
		polylineAnnotation.BorderStyle.Width = 2
		page.Annotations.Add(polylineAnnotation)

        ' Save document to file
        pdfDocument.Save("result.pdf")

        ' Cleanup 
		pdfDocument.Dispose()

        ' Open document in default PDF viewer app
        Process.Start("result.pdf")

    End Sub

End Class 

Program.cs: C#

//*******************************************************************
//       ByteScout PDF SDK		                                     
//                                                                   
//       Copyright © 2016 ByteScout - http://www.bytescout.com       
//       ALL RIGHTS RESERVED                                         
//                                                                   
//*******************************************************************

using System.Diagnostics;
using System.Drawing;
using Bytescout.PDF;

namespace MarkupAnnotation
{
	/// <summary>
	/// This example demonstrates how to add markup annotations.
	/// </summary>
	class Program
	{
		static void Main()
		{
			// Create new document
			Document pdfDocument = new Document();
			pdfDocument.RegistrationName = "demo";
			pdfDocument.RegistrationKey = "demo";
			// Add page
			Page page = new Page(PaperFormat.A4);
			pdfDocument.Pages.Add(page);

			// Draw sample markup annotations

			SquareAnnotation squareAnnotation = new SquareAnnotation(20, 20, 80, 80);
			squareAnnotation.BackgroundColor = new ColorRGB(255, 240, 240);
			squareAnnotation.BorderStyle.Style = BorderStyle.Dashed;
			squareAnnotation.BorderStyle.DashPattern = new DashPattern(new float[] { 3, 1, 3});
			page.Annotations.Add(squareAnnotation);

			CircleAnnotation circleAnnotation = new CircleAnnotation(120, 20, 80, 80);
			circleAnnotation.BackgroundColor = new ColorRGB(240, 250, 240);
			circleAnnotation.Color = new ColorRGB(128, 0 ,128);
			circleAnnotation.BorderEffect.Effect = BorderEffect.Cloudy;
			circleAnnotation.BorderEffect.Intensity = 2;
			page.Annotations.Add(circleAnnotation);

			LineAnnotation lineAnnotation = new LineAnnotation(20, 180, 100, 120);
			lineAnnotation.Color = new ColorRGB(255, 0, 0);
			lineAnnotation.StartLineStyle = LineEndingStyle.Butt;
			lineAnnotation.EndLineStyle = LineEndingStyle.OpenArrow;
			page.Annotations.Add(lineAnnotation);

			PointF[] pp = { new PointF(120, 120), new PointF(130, 130), new PointF(140, 120), new PointF(150, 130), new PointF(160, 120), new PointF(170, 130) };
			PointsArray points = new PointsArray(pp);
			PolylineAnnotation polylineAnnotation = new PolylineAnnotation(points);
			polylineAnnotation.BorderStyle.Width = 2;
			page.Annotations.Add(polylineAnnotation);
			
			
			// Save document to file
			pdfDocument.Save("result.pdf");

			// Cleanup 
			pdfDocument.Dispose();

			// Open document in default PDF viewer app
			Process.Start("result.pdf");
		}
	}
} 

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