Define Custom URI Links in HTML

EVO HTML to PDF Converter allows you to transform any HTML element to an URI link in PDF by setting the data-link-enabled and data-link_href attributes on HTML element. With data-link-enabled attribute you can also disable the automatic conversion of a HTML URI link to a PDF link when you set this attribute to false.

Code Sample - Define Custom URI Links in HTML

C#
using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

// Use EVO PDF Namespace
using EvoPdfClient;

namespace EvoHtmlToPdfDemo.HTML_to_PDF.URI_Links
{
    public partial class Define_Custom_URI_Links : System.Web.UI.Page
    {
        protected void convertToPdfButton_Click(object sender, EventArgs e)
        {
            // Get the server IP and port
            String serverIP = textBoxServerIP.Text;
            uint serverPort = uint.Parse(textBoxServerPort.Text);

            // Create a HTML to PDF converter object
            HtmlToPdfConverter htmlToPdfConverter = null;
            if (radioButtonUseTcpService.Checked)
                htmlToPdfConverter = new HtmlToPdfConverter(serverIP, serverPort);
            else
                htmlToPdfConverter = new HtmlToPdfConverter(true, textBoxWebServiceUrl.Text);

            // Set optional service password
            if (textBoxServicePassword.Text.Length > 0)
                htmlToPdfConverter.ServicePassword = textBoxServicePassword.Text;

            // Set license key received after purchase to use the converter in licensed mode
            // Leave it not set to use the converter in demo mode
            htmlToPdfConverter.LicenseKey = "4W9+bn19bn5ue2B+bn1/YH98YHd3d3c=";

            // Set an adddional delay in seconds to wait for JavaScript or AJAX calls after page load completed
            // Set this property to 0 if you don't need to wait for such asynchcronous operations to finish
            htmlToPdfConverter.ConversionDelay = 2;

            byte[] outPdfBuffer = null;

            if (convertHtmlRadioButton.Checked)
            {
                string htmlWithInternalLinksAttributes = htmlStringTextBox.Text;
                string baseUrl = baseUrlTextBox.Text;

                // Convert a HTML string with URI links to a PDF document in a memory buffer
                outPdfBuffer = htmlToPdfConverter.ConvertHtml(htmlWithInternalLinksAttributes, baseUrl);
            }
            else
            {
                string url = urlTextBox.Text;

                // Convert a HTML page with URI links to a PDF document in a memory buffer
                outPdfBuffer = htmlToPdfConverter.ConvertUrl(url);
            }

            // 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=Custom_URI_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();
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                string currentPageUrl = HttpContext.Current.Request.Url.AbsoluteUri;
                string rootUrl = "http://www.evopdf.com/demo/";

                htmlStringTextBox.Text = System.IO.File.ReadAllText(Server.MapPath("~/DemoAppFiles/Input/HTML_Files/Custom_URI_Links.html"));
                baseUrlTextBox.Text = rootUrl + "DemoAppFiles/Input/HTML_Files/";

                urlTextBox.Text = rootUrl + "DemoAppFiles/Input/HTML_Files/Custom_URI_Links.html";

                sampleCodeLiteral.Text = System.IO.File.ReadAllText(Server.MapPath("~/DemoAppFiles/Input/Code_Samples/CSharp/AspNet/HTML_to_PDF/URI_Links/Define_Custom_URI_Links.html"));
                descriptionLiteral.Text = System.IO.File.ReadAllText(Server.MapPath("~/DemoAppFiles/Input/Descriptions/AspNet/HTML_to_PDF/URI_Links/Define_Custom_URI_Links.html"));

                Master.CollapseAll();
                Master.ExpandNode("HTML_to_PDF");
                Master.ExpandNode("URI_Links_in_PDF");
                Master.SelectNode("Custom_URI_Links");
            }
        }

        protected void convertHtmlRadioButton_CheckedChanged(object sender, EventArgs e)
        {
            urlPanel.Visible = convertUrlRadioButton.Checked;
            htmlStringPanel.Visible = !convertUrlRadioButton.Checked;
        }

        protected void convertUrlRadioButton_CheckedChanged(object sender, EventArgs e)
        {
            urlPanel.Visible = convertUrlRadioButton.Checked;
            htmlStringPanel.Visible = !convertUrlRadioButton.Checked;
        }

        protected void demoMenu_MenuItemClick(object sender, MenuEventArgs e)
        {
            switch (e.Item.Value)
            {
                case "Live_Demo":
                    demoMultiView.SetActiveView(liveDemoView);
                    break;
                case "Description":
                    demoMultiView.SetActiveView(descriptionView);
                    break;
                case "Sample_Code":
                    demoMultiView.SetActiveView(sampleCodeView);
                    break;
                default:
                    break;
            }
        }

        protected void viewHtmlLinkButton_Click(object sender, EventArgs e)
        {
            Response.Redirect(urlTextBox.Text);
        }
    }
}

HTML Code with Custom Link Attributes

XML
<!DOCTYPE html>
<html>
<head>
    <title>Define Custom URI Links in HTML</title>
</head>
<body style="font-family: 'Times New Roman'; font-size: 14px">
    <table data-link-enabled="true" data-link-href="http://www.evopdf.com" style="border: 1px solid green; width: 600px">
        <tr>
            <td style="font-weight: bold; color: navy" colspan="2">This HTML Table is Converted to an URI Link in PDF Using 'Data-Link-Enabled' Attribute
            </td>
        </tr>
        <tr>
            <td style="width: 350px">
                <img alt="Logo Image" style="width: 350px" src="img/logo.jpg" />
            </td>
            <td style="font-size: 40px; font-weight: normal; color: navy; text-align: center">>>>
            </td>
        </tr>
    </table>
    <br />
    <br />
    <span style="font-weight: bold; color: black">The HTML Link Below was Explicitly Disabled Using 'Data-Link-Enabled' Attribute:</span><br />
    <br />
    <a data-link-enabled="false" style="font-size: 18px; font-weight: bold; color: gray" href="http://www.evopdf.com" id="linkHtmlID">Visit EVO HTML to PDF Converter Website</a>
</body>
</html>