How to add annotation in PDF using ByteScout PDF SDK

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How to add annotation in PDF using ByteScout PDF SDK

How to create annotation in PDF document

The example demonstrates how to add a text annotation using ByteScout PDF SDK.

Program.vb:
VB

'*******************************************************************
'       ByteScout PDF SDK
'                                                                   
'       Copyright © 2016 Bytescout, https://bytescout.com        
'       ALL RIGHTS RESERVED                                         
'                                                                   
'*******************************************************************
 
Imports Bytescout.PDF
 
''' <summary>
''' This example demonstrates how to add a text annotation.
''' </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)
 
        ' Add collapsed annotation (shown as a tooltip when mouse is over the icon)
        Dim collapsedAnnotation = New TextAnnotation(20, 20)
        collapsedAnnotation.Color = New ColorRGB(255, 255, 0)
        collapsedAnnotation.Icon = TextAnnotationIcon.Comment
        collapsedAnnotation.Author = "Mr. Important"
        collapsedAnnotation.Contents = "The quick brown fox jumps over the lazy dog."
        page.Annotations.Add(collapsedAnnotation)
 
        ' Add expanded annotation
        Dim expandedAnnotation = New TextAnnotation(20, 50)
        expandedAnnotation.Color = New ColorRGB(255, 0, 0)
        expandedAnnotation.Icon = TextAnnotationIcon.Note
        expandedAnnotation.Open = True
        expandedAnnotation.Author = "John Doe"
        expandedAnnotation.Contents = "The quick brown fox jumps over the lazy dog."
        page.Annotations.Add(expandedAnnotation)
 
        ' 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 - https://bytescout.com       
//       ALL RIGHTS RESERVED                                         
//                                                                   
//*******************************************************************
 
using System.Diagnostics;
using Bytescout.PDF;
 
namespace TextAnnotationExample
{
    /// <summary>
    /// This example demonstrates how to add a text annotation.
    /// </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);
 
            // Add collapsed annotation (shown as a tooltip when mouse is over the icon)
            TextAnnotation collapsedAnnotation = new TextAnnotation(20, 20);
            collapsedAnnotation.Color = new ColorRGB(255, 255, 0);
            collapsedAnnotation.Icon = TextAnnotationIcon.Comment;
            collapsedAnnotation.Author = "Mr. Important";
            collapsedAnnotation.Contents = "The quick brown fox jumps over the lazy dog.";
            page.Annotations.Add(collapsedAnnotation);
 
            // Add expanded annotation
            TextAnnotation expandedAnnotation = new TextAnnotation(20, 50);
            expandedAnnotation.Color = new ColorRGB(255, 0, 0);
            expandedAnnotation.Icon = TextAnnotationIcon.Note;
            expandedAnnotation.Open = true;
            expandedAnnotation.Author = "John Doe";
            expandedAnnotation.Contents = "The quick brown fox jumps over the lazy dog.";
            page.Annotations.Add(expandedAnnotation);
             
            // Save document to file
            pdfDocument.Save("result.pdf");
 
            // Cleanup 
            pdfDocument.Dispose();
 
            // Open document in default PDF viewer app
            Process.Start("result.pdf");
        }
    }
}

Tutorials:

Web API