Implement Hyperlinks in PDFs with C# and .NET

Link annotations represent either hypertext links to other locations in the document or actions to be performed. It is represented by the PdfLinkAnnotation class.

With PDF .Net, you can add hyperlinks to PDF in your C# or VB.NET application.

The following example shows how to add link annotations with different actions to a PDF page.

Complete code

using System;
using System.IO;
using SautinSoft;
using SautinSoft.Pdf;
using SautinSoft.Pdf.Content;

namespace Sample
{
    class Sample
    {
        /// <summary>
        /// Add hyperlinks to PDF files.
        /// </summary>
        /// <remarks>
        /// Details: https://sautinsoft.com/products/pdf/help/net/developer-guide/hyperlinks.php
        /// </remarks>
        static void Main(string[] args)
        {
            // Before starting this example, please get a free 100-day trial key:
            // https://sautinsoft.com/start-for-free/

            // Apply the key here:
            // PdfDocument.SetLicense("...");

            string pdfFile = Path.GetFullPath(@"..\..\..\simple text.pdf");

            using (var document = new PdfDocument())
            {
                var page = document.Pages.Add();

                var secondPage = document.Pages.Add();

                var pageWidth = page.Size.Width;

                using (var formattedText = new PdfFormattedText())
                {
                    formattedText.FontSize = 24;
                    formattedText.Append("First page");
                    double y = 700;
                    var origin = new PdfPoint((pageWidth - formattedText.Width) / 2, y);
                    page.Content.DrawText(formattedText, origin);

                    var image = PdfImage.Load("..\\..\\..\\SautinSoft.png");
                    y -= image.Size.Height + 100;
                    origin = new PdfPoint((pageWidth - image.Size.Width) / 2, y);
                    page.Content.DrawImage(image, origin);

                    // Add a link annotation over the drawn image that opens a website.
                    var link = page.Annotations.AddLink(origin.X, origin.Y, image.Size.Width, image.Size.Height);
                    link.Actions.AddOpenWebLink("https://sautinsoft.com/");

                    formattedText.Clear();
                    formattedText.Append("Open file");
                    y -= formattedText.Height + 100;
                    origin = new PdfPoint((pageWidth - formattedText.Width) / 2, y);
                    page.Content.DrawText(formattedText, origin);

                    // Add a link annotation over the drawn text that opens a file.
                    link = page.Annotations.AddLink(origin.X, origin.Y, formattedText.Width, formattedText.Height);
                    link.Actions.AddOpenFile(pdfFile);

                    formattedText.Clear();
                    formattedText.Append("Go to second page");
                    y -= formattedText.Height + 100;
                    origin = new PdfPoint((pageWidth - formattedText.Width) / 2, y);
                    page.Content.DrawText(formattedText, origin);

                    // Add a link annotation over the drawn text that goes to the second page.
                    link = page.Annotations.AddLink(origin.X, origin.Y, formattedText.Width, formattedText.Height);
                    link.Actions.AddGoToPageView(secondPage, PdfDestinationViewType.FitPage);

                    formattedText.Clear();
                    formattedText.Append("Second page");
                    origin = new PdfPoint((pageWidth - formattedText.Width) / 2, 700);
                    secondPage.Content.DrawText(formattedText, origin);
                }

                document.Save("Hyperlinks.pdf");
            }

            System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo("Hyperlinks.pdf") { UseShellExecute = true });
        }
    }
}

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We are developing .Net components since 2002. We know PDF, DOCX, RTF, HTML, XLSX and Images formats. If you need any assistance with creating, modifying or converting documents in various formats, we can help you. We will write any code example for you absolutely free.