Insert Page Breaks in PDF Using API

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.HTML_to_PDF.Page_Breaks
{
    public class Insert_Page_Breaks_Before_After_Using_APIController : 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;

            // Set the CSS selectors of the HTML elements before which to insert page breaks
            htmlToPdfConverter.PdfDocumentOptions.PageBreakBeforeHtmlElementsSelectors = new string[] { collection["htmlElementsBeforeSelectorTextBox"] };

            // Set the CSS selectors of the HTML elements after which to insert page breaks
            htmlToPdfConverter.PdfDocumentOptions.PageBreakAfterHtmlElementsSelectors = new string[] { collection["htmlElementsAfterSelectorTextBox"] };

            byte[] outPdfBuffer = null;

            if (collection["HtmlPageSource"] == "convertHtmlRadioButton")
            {
                string htmlWithForm = collection["htmlStringTextBox"];
                string baseUrl = collection["baseUrlTextBox"];

                // Convert the HTML string to a PDF document in a memory buffer
                outPdfBuffer = htmlToPdfConverter.ConvertHtml(htmlWithForm, baseUrl);
            }
            else
            {
                string url = collection["urlTextBox"];

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

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

            return fileResult;
        }
    }
}

<!DOCTYPE html>
<html>
<head>
    <title>Insert Page Breaks Before and After HTML Elements Using API</title>
</head>
<body style="width: 1010px; font-family: 'Times New Roman'; font-size: 20px; margin: 5px">
    <div style="width: 100%; height: 500px; background-color: aliceblue; border: 2px solid gray; text-align: center">
        <div style="width: 100%; height: 200px"></div>
        A block <b>without any page break</b> style<br />
        <br />
        [ Follows a block with page break before and page break after forced from API using <i>PageBreakBeforeHtmlElementsSelectors</i> and <i>PageBreakAfterHtmlElementsSelectors</i> properties ]
    </div>
    <div id="page_break_before_and_after_div" style="width: 100%; height: 500px; background-color: gainsboro; border: 2px solid gray; text-align: center">
        <div style="width: 100%; height: 200px"></div>
        A block with page break before and page break after forced from API using <i>PageBreakBeforeHtmlElementsSelectors</i> and <i>PageBreakAfterHtmlElementsSelectors</i> properties<br />
        <br />
        <b>This block will be always rendered alone in a PDF page</b><br />
        <br />
        [ Follows a block with page break after forced from API using <i>PageBreakAfterHtmlElementsSelectors</i> property ]
    </div>
    <div id="page_break_after_div" style="width: 100%; height: 500px; background-color: beige; border: 2px solid gray; text-align: center">
        <div style="width: 100%; height: 200px"></div>
        A block with page break after forced from API using <i>PageBreakAfterHtmlElementsSelectors</i> property<br />
        <br />
        <b>Nothing will be rendered after this block in PDF page</b>
        <br />
        <br />
        [ Follows a block <i>without any page break</i> style ]
    </div>
    <div style="width: 100%; height: 500px; background-color: aliceblue; border: 2px solid gray; text-align: center">
        <div style="width: 100%; height: 200px"></div>
        A block <b>without any page break</b> style<br />
        <br />
        [ Follows a block with page break before forced from API using <i>PageBreakBeforeHtmlElementsSelectors</i> property ]
    </div>
    <div id="page_break_before_div" style="width: 100%; height: 500px; background-color: lightgray; border: 2px solid gray; text-align: center">
        <div style="width: 100%; height: 200px"></div>
        A block with page break before forced from API using <i>PageBreakBeforeHtmlElementsSelectors</i> property<br />
        <br />
        <b>This block will always be rendered at the top of a PDF page</b>
    </div>
</body>
</html>