Convert from HTML to PDF in ASP.NET Core with a Free 3rd Party Library

Html to Pdf Conversion is now available for .NET Core. SelectPdf offers a Community Edition (FREE) of the powerful Html To Pdf Converter for .NET Core that can be found in the full featured pdf library.

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using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;

namespace SelectPdf.Samples.Pages
    public class AutomaticBookmarksModel : PageModel
        public void OnGet()
            TxtUrl = Helper.WWWRoot(Request) + Url.Content("~/files/document.html");

        public string TxtUrl { get; set; }

        public string TxtElements { get; set; }

        public IActionResult OnPost()
            // instantiate a html to pdf converter object
            HtmlToPdf converter = new HtmlToPdf();

            // set the css selectors for the automatic bookmarks
            converter.Options.PdfBookmarkOptions.CssSelectors =
                TxtElements.Split(new char[] { ',' });

            // display the bookmarks when the document is opened in a viewer
            converter.Options.ViewerPreferences.PageMode = PdfViewerPageMode.UseOutlines;

            // create a new pdf document converting an url
            PdfDocument doc = converter.ConvertUrl(TxtUrl);

            // save pdf document
            byte[] pdf = doc.Save();

            // close pdf document

            // return resulted pdf document
            FileResult fileResult = new FileContentResult(pdf, "application/pdf");
            fileResult.FileDownloadName = "Document.pdf";
            return fileResult;