EVO HTML to PDF Converter can be configured to automatically create a table of contents in PDF document based on H1 to H6 head tags found in HTML document by simply turning on the TableOfContentsOptionsAutoTocItemsEnabled option. An object of TableOfContentsOptions type is exposed by the HtmlToPdfConverterTableOfContentsOptions property.
Code Sample - Auto Create Table of Contents
C#
protected void convertToPdf() { // 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; // Enable the creation of a table of contents from H1 to H6 tags found in HTML htmlToPdfConverter.TableOfContentsOptions.AutoTocItemsEnabled = autoTableOfContentsCheckBox.Checked; // Optionally set the table of contents title htmlToPdfConverter.TableOfContentsOptions.Title = "Table of Contents"; // Optionally set the title style using CSS sttributes htmlToPdfConverter.TableOfContentsOptions.TitleStyle = "color:navy; font-family:'Times New Roman'; font-size:28px; font-weight:normal"; // Optionally set the style of level 1 items in table of contents string level1TextStyle = "color:black; font-family:'Times New Roman'; font-size:20px; font-weight:normal; font-style:normal; background-color:#F0F0F0"; htmlToPdfConverter.TableOfContentsOptions.SetItemStyle(1, level1TextStyle); // Optionally set the page numbers style of level 1 items in table of contents string level1PageNumberStyle = "color:black; padding-right:3px; background-color:#F0F0F0; font-size:14px; font-weight:bold"; htmlToPdfConverter.TableOfContentsOptions.SetPageNumberStyle(1, level1PageNumberStyle); // Convert the HTML page to a PDF document in a memory buffer byte[] outPdfBuffer = htmlToPdfConverter.ConvertUrl(urlTextBox.Text); }