EVO HTML to PDF Converter allows you to transform any region of a PDF page into a link to any point of PDF page of the same PDF document. You can create internal links in a PDF document by adding EvoPdfInternalLinkElement objects to a PDF document.
Code Sample - Add Internal Links in a PDF Document
protected void createPdfButton_Click(object sender, EventArgs e) { // Create a PDF document Document pdfDocument = new Document(); // Set license key received after purchase to use the converter in licensed mode // Leave it not set to use the converter in demo mode pdfDocument.LicenseKey = "4W9+bn19bn5ue2B+bn1/YH98YHd3d3c="; // Add a page to PDF document PdfPage pdfPage = pdfDocument.AddPage(); // Add second page to PDF document PdfPage secondPdfPage = pdfDocument.AddPage(); // Add third page to PDF document PdfPage thirdPdfPage = pdfDocument.AddPage(); try { // The titles font used to mark various sections of the PDF document PdfFont titleFont = pdfDocument.AddFont(new Font("Times New Roman", 10, FontStyle.Bold, GraphicsUnit.Point)); PdfFont subtitleFont = pdfDocument.AddFont(new Font("Times New Roman", 8, FontStyle.Regular, GraphicsUnit.Point)); // The links text font PdfFont linkTextFont = pdfDocument.AddFont(new Font("Times New Roman", 8, FontStyle.Bold, GraphicsUnit.Point)); linkTextFont.IsUnderline = true; float xLocation = 5; float yLocation = 5; // Add document title TextElement titleTextElement = new TextElement(xLocation, yLocation, "Create Internal Links in PDF Document", titleFont); AddElementResult addElementResult = pdfPage.AddElement(titleTextElement); yLocation = addElementResult.EndPageBounds.Bottom + 15; // Add a text in second page TextElement secondPageTextElement = new TextElement(5, 5, "This text is the target of an internal text link", subtitleFont); secondPdfPage.AddElement(secondPageTextElement); // Add a text in third page TextElement thirdPageTextElement = new TextElement(5, 5, "This text is the target of an internal image link", subtitleFont); thirdPdfPage.AddElement(thirdPageTextElement); // Make a text in PDF an internal link to the second page of the PDF document // Add the text element string text = "Click this text to go to the second page of this document!"; float textWidth = linkTextFont.GetTextWidth(text); TextElement linkTextElement = new TextElement(xLocation, yLocation, text, linkTextFont); linkTextElement.ForeColor = Color.Navy; addElementResult = pdfPage.AddElement(linkTextElement); // Make the text element an internal link to the second page of this document RectangleF linkRectangle = new RectangleF(xLocation, yLocation, textWidth, addElementResult.EndPageBounds.Height); // Create the destination in second page ExplicitDestination secondPageDestination = new ExplicitDestination(secondPdfPage, new PointF(5, 5)); // Create the internal link from text element to second page InternalLinkElement internalLink = new InternalLinkElement(linkRectangle, secondPageDestination); // Add the internal link to PDF document pdfPage.AddElement(internalLink); yLocation = addElementResult.EndPageBounds.Bottom + 10; // Make an image in PDF an internal link to the third page of the PDF document TextElement subtitleTextElement = new TextElement(xLocation, yLocation, "Click the image below to go to the third page of this document:", subtitleFont); addElementResult = pdfPage.AddElement(subtitleTextElement); yLocation = addElementResult.EndPageBounds.Bottom + 5; // Add the image element ImageElement linkImageElement = new ImageElement(xLocation, yLocation, 120, Server.MapPath("~/DemoAppFiles/Input/Images/logo.jpg")); addElementResult = pdfPage.AddElement(linkImageElement); // Make the image element an internal link to the third page of this document linkRectangle = addElementResult.EndPageBounds; // Create the destination in third page ExplicitDestination thirdPageDestination = new ExplicitDestination(thirdPdfPage, new PointF(5, 5)); // Create the internal link from image element to third page internalLink = new InternalLinkElement(linkRectangle, thirdPageDestination); // Add the internal link to PDF document pdfPage.AddElement(internalLink); // Save the PDF document in a memory buffer byte[] outPdfBuffer = pdfDocument.Save(); // Send the PDF as response to browser // Set response content type Response.AddHeader("Content-Type", "application/pdf"); // Instruct the browser to open the PDF file as an attachment or inline Response.AddHeader("Content-Disposition", String.Format("attachment; filename=Internal_Links.pdf; size={0}", outPdfBuffer.Length.ToString())); // Write the PDF document buffer to HTTP response Response.BinaryWrite(outPdfBuffer); // End the HTTP response and stop the current page processing Response.End(); } finally { // Close the PDF document pdfDocument.Close(); } }