EVO HTML to PDF Converter allows you create text notes marked by appropriate icons in the generated PDF document. The text notes are created by adding EvoPdfClientTextNoteElement objects to a PDF document.
Code Sample - Add Text Notes to Generated PDF Document
C#
using System; using System.Collections.Generic; using System.Linq; using System.Threading.Tasks; using Microsoft.AspNetCore.Mvc; using Microsoft.AspNetCore.Http; using Microsoft.AspNetCore.Hosting; // Use EVO PDF Namespace using EvoPdfClient; namespace EvoHtmlToPdfDemo.Controllers { public class Create_Text_NotesController : Controller { private readonly Microsoft.AspNetCore.Hosting.IWebHostEnvironment m_hostingEnvironment; public Create_Text_NotesController(IWebHostEnvironment hostingEnvironment) { m_hostingEnvironment = hostingEnvironment; } private void SetCurrentViewData() { ViewData["ContentRootPath"] = m_hostingEnvironment.ContentRootPath + "/wwwroot"; HttpRequest request = this.ControllerContext.HttpContext.Request; UriBuilder uriBuilder = new UriBuilder(); uriBuilder.Scheme = request.Scheme; uriBuilder.Host = request.Host.Host; if (request.Host.Port != null) uriBuilder.Port = (int)request.Host.Port; uriBuilder.Path = request.PathBase.ToString() + request.Path.ToString(); uriBuilder.Query = request.QueryString.ToString(); ViewData["CurrentPageUrl"] = uriBuilder.Uri.AbsoluteUri; } // GET: Create_Text_Notes public ActionResult Index() { SetCurrentViewData(); return View(); } [HttpPost] public ActionResult ConvertHtmlToPdf(IFormCollection collection) { // Get the server options string serverIP = collection["textBoxServerIP"]; uint serverPort = uint.Parse(collection["textBoxServerPort"]); string servicePassword = collection["textBoxServicePassword"]; bool useServicePassword = servicePassword.Length > 0; bool useTcpService = collection["ServerType"] == "radioButtonUseTcpService"; string webServiceUrl = collection["textBoxWebServiceUrl"]; // Create the HTML to PDF converter object HtmlToPdfConverter htmlToPdfConverter = null; if (useTcpService) htmlToPdfConverter = new HtmlToPdfConverter(serverIP, serverPort); else htmlToPdfConverter = new HtmlToPdfConverter(true, webServiceUrl); // Set optional service password if (useServicePassword) htmlToPdfConverter.ServicePassword = servicePassword; // 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; string htmlWithLinksAndAttachMarkers = collection["htmlStringTextBox"]; string baseUrl = collection["baseUrlTextBox"]; // Convert a HTML string with markers for file links and attachments to a PDF document object Document pdfDocument = htmlToPdfConverter.ConvertHtmlToPdfDocumentObject(htmlWithLinksAndAttachMarkers, baseUrl); // Make the HTML element with 'text_note' mapping ID a text note HtmlElementMapping textNoteMapping = htmlToPdfConverter.HtmlElementsMappingOptions.HtmlElementsMappingResult.GetElementByMappingId("text_note"); if (textNoteMapping != null) { PdfPage textNotePage = pdfDocument.GetPage(textNoteMapping.PdfRectangles[0].PageIndex); RectangleFloat textNoteRectangle = textNoteMapping.PdfRectangles[0].Rectangle; // Create the text note TextNoteElement textNoteElement = new TextNoteElement(textNoteRectangle, "This is an initially closed text note"); textNoteElement.NoteIcon = TextNoteIcon.Note; textNoteElement.Open = false; textNotePage.AddElement(textNoteElement); } // Make the HTML element with 'text_note_opened' mapping ID an initially opened text note HtmlElementMapping textNoteOpenedMapping = htmlToPdfConverter.HtmlElementsMappingOptions.HtmlElementsMappingResult.GetElementByMappingId("text_note_opened"); if (textNoteOpenedMapping != null) { PdfPage textNoteOpenedPage = pdfDocument.GetPage(textNoteMapping.PdfRectangles[0].PageIndex); RectangleFloat textNoteOpenedRectangle = textNoteOpenedMapping.PdfRectangles[0].Rectangle; // Create the text note TextNoteElement textNoteOpenedElement = new TextNoteElement(textNoteOpenedRectangle, "This is an initially opened text note"); textNoteOpenedElement.NoteIcon = TextNoteIcon.Note; textNoteOpenedElement.Open = true; textNoteOpenedPage.AddElement(textNoteOpenedElement); } // Make the HTML element with 'help_note' mapping ID a help note HtmlElementMapping helpNoteMapping = htmlToPdfConverter.HtmlElementsMappingOptions.HtmlElementsMappingResult.GetElementByMappingId("help_note"); if (helpNoteMapping != null) { PdfPage helpNotePage = pdfDocument.GetPage(textNoteMapping.PdfRectangles[0].PageIndex); RectangleFloat helpNoteRectangle = helpNoteMapping.PdfRectangles[0].Rectangle; // Create the text note TextNoteElement helpNoteElement = new TextNoteElement(helpNoteRectangle, "This is an initially closed help note"); helpNoteElement.NoteIcon = TextNoteIcon.Help; helpNoteElement.Open = false; helpNotePage.AddElement(helpNoteElement); } // Make the HTML element with 'help_note_opened' mapping ID an initially opened help note HtmlElementMapping helpNoteOpenedMapping = htmlToPdfConverter.HtmlElementsMappingOptions.HtmlElementsMappingResult.GetElementByMappingId("help_note_opened"); if (helpNoteOpenedMapping != null) { PdfPage helpNoteOpenedPage = pdfDocument.GetPage(textNoteMapping.PdfRectangles[0].PageIndex); RectangleFloat helpNoteOpenedRectangle = helpNoteOpenedMapping.PdfRectangles[0].Rectangle; // Create the text note TextNoteElement helpNoteOpenedElement = new TextNoteElement(helpNoteOpenedRectangle, "This is an initially opened help note"); helpNoteOpenedElement.NoteIcon = TextNoteIcon.Help; helpNoteOpenedElement.Open = true; helpNoteOpenedPage.AddElement(helpNoteOpenedElement); } // Make the HTML element with 'comment_note' mapping ID a comment note HtmlElementMapping commentNoteMapping = htmlToPdfConverter.HtmlElementsMappingOptions.HtmlElementsMappingResult.GetElementByMappingId("comment_note"); if (commentNoteMapping != null) { PdfPage commentNotePage = pdfDocument.GetPage(textNoteMapping.PdfRectangles[0].PageIndex); RectangleFloat commentNoteRectangle = commentNoteMapping.PdfRectangles[0].Rectangle; // Create the text note TextNoteElement commentNoteElement = new TextNoteElement(commentNoteRectangle, "This is an initially closed comment note"); commentNoteElement.NoteIcon = TextNoteIcon.Comment; commentNoteElement.Open = false; commentNotePage.AddElement(commentNoteElement); } // Make the HTML element with 'comment_note_opened' mapping ID an initially opened comment note HtmlElementMapping commentNoteOpenedMapping = htmlToPdfConverter.HtmlElementsMappingOptions.HtmlElementsMappingResult.GetElementByMappingId("comment_note_opened"); if (commentNoteOpenedMapping != null) { PdfPage commentNoteOpenedPage = pdfDocument.GetPage(textNoteMapping.PdfRectangles[0].PageIndex); RectangleFloat commentNoteOpenedRectangle = commentNoteOpenedMapping.PdfRectangles[0].Rectangle; // Create the text note TextNoteElement commentNoteOpenedElement = new TextNoteElement(commentNoteOpenedRectangle, "This is an initially opened comment note"); commentNoteOpenedElement.NoteIcon = TextNoteIcon.Comment; commentNoteOpenedElement.Open = true; commentNoteOpenedPage.AddElement(commentNoteOpenedElement); } // Make the HTML element with 'paragraph_note' mapping ID a paragraph note HtmlElementMapping paragraphNoteMapping = htmlToPdfConverter.HtmlElementsMappingOptions.HtmlElementsMappingResult.GetElementByMappingId("paragraph_note"); if (paragraphNoteMapping != null) { PdfPage paragraphNotePage = pdfDocument.GetPage(textNoteMapping.PdfRectangles[0].PageIndex); RectangleFloat paragraphNoteRectangle = paragraphNoteMapping.PdfRectangles[0].Rectangle; // Create the text note TextNoteElement paragraphNoteElement = new TextNoteElement(paragraphNoteRectangle, "This is an initially closed paragraph note"); paragraphNoteElement.NoteIcon = TextNoteIcon.Paragraph; paragraphNoteElement.Open = false; paragraphNotePage.AddElement(paragraphNoteElement); } // Make the HTML element with 'new_paragraph_note' mapping ID a new paragraph note HtmlElementMapping newParagraphNoteMapping = htmlToPdfConverter.HtmlElementsMappingOptions.HtmlElementsMappingResult.GetElementByMappingId("new_paragraph_note"); if (newParagraphNoteMapping != null) { PdfPage newParagraphNotePage = pdfDocument.GetPage(textNoteMapping.PdfRectangles[0].PageIndex); RectangleFloat newParagraphNoteRectangle = newParagraphNoteMapping.PdfRectangles[0].Rectangle; // Create the text note TextNoteElement newParagraphNoteElement = new TextNoteElement(newParagraphNoteRectangle, "This is an initially closed new paragraph note"); newParagraphNoteElement.NoteIcon = TextNoteIcon.NewParagraph; newParagraphNoteElement.Open = false; newParagraphNotePage.AddElement(newParagraphNoteElement); } // Make the HTML element with 'key_note' mapping ID a key note HtmlElementMapping keyNoteMapping = htmlToPdfConverter.HtmlElementsMappingOptions.HtmlElementsMappingResult.GetElementByMappingId("key_note"); if (keyNoteMapping != null) { PdfPage keyNotePage = pdfDocument.GetPage(textNoteMapping.PdfRectangles[0].PageIndex); RectangleFloat keyNoteRectangle = keyNoteMapping.PdfRectangles[0].Rectangle; // Create the text note TextNoteElement keyNoteElement = new TextNoteElement(keyNoteRectangle, "This is an initially closed key note"); keyNoteElement.NoteIcon = TextNoteIcon.Key; keyNoteElement.Open = false; keyNotePage.AddElement(keyNoteElement); } // Save the PDF document in a memory buffer byte[] outPdfBuffer = pdfDocument.Save(); // Send the PDF file to browser FileResult fileResult = new FileContentResult(outPdfBuffer, "application/pdf"); fileResult.FileDownloadName = "Text_Notes.pdf"; return fileResult; } } }
HTML String with Markers for Text Notes
XML
<!DOCTYPE html> <html> <head> <title>Add Text Notes to PDF</title> </head> <body style="font-family: 'Times New Roman'; font-size: 14px"> <span style="font-size: 24px; font-weight: bold">Text Notes</span><br /> <br /> <span style="">Click the next icon to open the the text note:</span> <span data-mapping-enabled="true" data-mapping-id="text_note"> </span><br /> <br /> <span style="">This is an already opened text note:</span> <span data-mapping-enabled="true" data-mapping-id="text_note_opened"> </span><br /> <br /> <span style="">Click the next icon to open the the help note:</span> <span data-mapping-enabled="true" data-mapping-id="help_note"> </span><br /> <br /> <span style="">This is an already opened help note:</span> <span data-mapping-enabled="true" data-mapping-id="help_note_opened"> </span><br /> <br /> <span style="">Click the next icon to open the comment:</span> <span data-mapping-enabled="true" data-mapping-id="comment_note"> </span><br /> <br /> <span style="">This is an already opened comment:</span> <span data-mapping-enabled="true" data-mapping-id="comment_note_opened"> </span><br /> <br /> <span style="">Click the next icon to open the paragraph note:</span> <span data-mapping-enabled="true" data-mapping-id="paragraph_note"> </span><br /> <br /> <span style="">Click the next icon to open the new paragraph note:</span> <span data-mapping-enabled="true" data-mapping-id="new_paragraph_note"> </span><br /> <br /> <span style="">Click the next icon to open the key note:</span> <span data-mapping-enabled="true" data-mapping-id="key_note"> </span><br /> </body> </html>