Insert Page Breaks in PDF Using CSS in HTML

EVO PDF Client for .NET Core

You can force page breaks in PDF using the page-break-before:always and page-break-after:always CSS attributes in HTML elements styles. The page-break-before:always attribute will force a page break right before the position in PDF page where the element would be normally rendered and the page-break-after:always will force a page break right after the position in PDF page where the element would be normally rendered.

Code Sample - Insert Page Breaks in PDF Using CSS in HTML

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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.Page_Breaks
{
    public class Insert_Page_Breaks_Before_After_Using_CSSController : 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;

            byte[] outPdfBuffer = null;

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

                // Convert the HTML string with page-break-before:always and page-break-after:always styles to a PDF document in a memory buffer
                outPdfBuffer = htmlToPdfConverter.ConvertHtml(htmlWithForm, baseUrl);
            }
            else
            {
                string url = collection["urlTextBox"];

                // Convert the HTML page with page-break-before:always and page-break-after:always styles 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_CSS.pdf";

            return fileResult;
        }
    }
}

HTML with page-break-before:always and page-break-after:always CSS Attributes

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<!DOCTYPE html>
<html>
<head>
    <title>Insert Page Breaks Before and After HTML Elements Using CSS</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 <i>page-break-before : always</i> and <i>page-break-after : always</i> styles ]
    </div>
    <div style="page-break-before: always; page-break-after: always; width: 100%; height: 500px; background-color: gainsboro; border: 2px solid gray; text-align: center">
        <div style="width: 100%; height: 200px"></div>
        A block with <b>page-break-before : always</b> and <b>page-break-after : always</b> styles<br />
        <br />
        <b>This block will be always rendered alone in a PDF page</b><br />
        <br />
        [ Follows a block with <i>page-break-after : always</i> style ]
    </div>
    <div style="page-break-after: always; width: 100%; height: 500px; background-color: beige; border: 2px solid gray; text-align: center">
        <div style="width: 100%; height: 200px"></div>
        A block with <b>page-break-after : always</b> style<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 <i>page-break-before : always</i> style ]
    </div>
    <div style="page-break-before: always; width: 100%; height: 500px; background-color: lightgray; border: 2px solid gray; text-align: center">
        <div style="width: 100%; height: 200px"></div>
        A block with <b>page-break-before : always</b> style<br />
        <br />
        <b>This block will always be rendered at the top of a PDF page</b>
    </div>
</body>
</html>