ByteScout PDF SDK – C# – Add Text Annotations in PDF

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ByteScout PDF SDK – C# – Add Text Annotations in PDF

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ByteScout-PDF-SDK-C-sharp-Add-Text-Annotations-in-PDF.pdf

How to add text annotations in PDF in C# with ByteScout PDF SDK

The tutorial shows how to add text annotations in PDF in C#

The sample source codes on this page shows how to add text annotations in PDF in C#. ByteScout PDF SDK: the pdf library that can create, update and modify PDF files. Supports text with fonts and style selections, layers, form fields, drawing lines and objects, automatic tables, images. Can be used to create and fill pdf forms. It can add text annotations in PDF in C#.

The SDK samples like this one below explain how to quickly make your application do add text annotations in PDF in C# with the help of ByteScout PDF SDK. This C# sample code is all you need for your app. Just copy and paste the code, add references (if needs to) and you are all set! Enjoy writing a code with ready-to-use sample codes in C#.

Trial version of ByteScout PDF SDK can be downloaded for free from our website. It also includes source code samples for C# and other programming languages.

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Program.cs

      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 result document in default associated application (for demo purpose)
            ProcessStartInfo processStartInfo = new ProcessStartInfo("result.pdf");
            processStartInfo.UseShellExecute = true;
            Process.Start(processStartInfo);
        }
    }
}