Select in API the HTML Elements to Hide

EVO PDF Client for .NET Core

EVO HTML to PDF Converter API allows you select the HTML elements to exclude from rendering to PDF. The converter does not reflow the HTML content when you exclude an element from rendering and the place where the element would be normally rendered remains blank. If you want to reflow the HTML content when the HTML element is hidden, you have to set display:none style for HTML element, eventually creating two separate stylesheets for screen and for print.

The selectors of the HTML elements to hide in the generated PDF document can be set in the HtmlToPdfConverterHiddenHtmlElementsSelectors property.

Code Sample - Select in API the HTML Elements to Hide

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Http;

// Use EVO PDF Namespace
using EvoPdfClient;

namespace EvoHtmlToPdfDemo.Controllers.HTML_to_PDF.HTML_Elements_Visibility
{
    public class Select_in_API_Elements_to_HideController : Controller
    {
        [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;

            // Select the HTML elements for which to retrieve location and other information from HTML document
            if (collection["hideSelectedElementsCheckBox"].Count > 0)
                htmlToPdfConverter.HiddenHtmlElementsSelectors = new string[] { collection["htmlElementsSelectorTextBox"] };

            // Convert the HTML page to a PDF document in a memory buffer
            byte[] outPdfBuffer = htmlToPdfConverter.ConvertUrl(collection["urlTextBox"]);

            // Send the PDF file to browser
            FileResult fileResult = new FileContentResult(outPdfBuffer, "application/pdf");
            fileResult.FileDownloadName = "Select_in_API_HTML_Elements_to_Hide.pdf";

            return fileResult;
        }
    }
}