using iText.Html2pdf; // NuGet: itext.html2pdf.core

using System.IO;

using SelectPdf;

using System.Threading.Tasks;

using PuppeteerSharp; // NuGet: PuppeteerSharp

//using HtmlRenderer.PdfSharp; // NuGet: HtmlRenderer.PdfSharp

​

public class Program

{

    public static void Main()

    {

        iTextHtml2PDF_Test();

        SelectPdf_Test();

        Task.Run(()=>PuppeteerSharp_Test());

        HtmlRenderer_PdfSharp_Test();

    }

    public static void iTextHtml2PDF_Test()

    {

        string htmlContent = "<h1>Hello, World!</h1>";

        HtmlConverter.ConvertToPdf(htmlContent, new FileStream("output1.pdf", FileMode.Create));

    }

    public static void SelectPdf_Test()

    {

        HtmlToPdf converter = new HtmlToPdf();

        PdfDocument doc = converter.ConvertHtmlString("<h1>Hello World</h1>");

        doc.Save("output2.pdf");

    }

    public static async void PuppeteerSharp_Test()

    {

        await new BrowserFetcher().DownloadAsync();

        var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });

        var page = await browser.NewPageAsync();

        await page.SetContentAsync("<h1>Hello World</h1>");

        await page.PdfAsync("output3.pdf");

        await browser.CloseAsync();

    }

    public static void HtmlRenderer_PdfSharp_Test()

    {

        var pdf = new PdfDocument();

        PdfGenerator.AddPdfPages(pdf, "<h1>Hello World</h1>", PageSize.A4);

        pdf.Save("output4.pdf");

    }

}