How to convert HTML to PDF in ASP.NET Core Windows?

Syncfusion HTML to PDF for .NET used to convert webpages, SVG, MHTML, and HTML to PDF. Using this library, you can convert HTML to PDF in ASP.NET Core Windows.

Steps to convert HTML to PDF in ASP.NET Core Windows programmatically:

1. Create a new ASP.NET Core MVC application.
2. Install the Syncfusion.HtmlToPdfConverter.QtWebKit.Net.Core NuGet package as reference to your .NET Core application from NuGet.org
3. Copy the QtBinariesWindows folder from the installed HtmltoPdfConverter package and paste it into the folder, which contains the HTMLtoPDF_Windows.csproj file.
4. Then, set Copy to output directory to copy all the QtBinariesWindows (all files including inner folders and files) assemblies.
5. Add an Export To PDF button in index.cshtml.pdf
6. Include the following namespaces and code snippet for converting HTML to PDF in ASP.NET Core Windows.

C#

using Syncfusion.HtmlConverter;
using Syncfusion.Pdf;
using System.IO;
using Microsoft.AspNetCore.Hosting;

//To get content root path of the project
private readonly IHostingEnvironment _hostingEnvironment;
public HomeController(IHostingEnvironment hostingEnvironment)
{
   _hostingEnvironment = hostingEnvironment;
}
 
public IActionResult ExportToPDF()
{
//Initialize HTML to PDF converter 
HtmlToPdfConverter htmlConverter = new HtmlToPdfConverter();
WebKitConverterSettings settings = new WebKitConverterSettings();
//Set WebKit path
settings.WebKitPath = Path.Combine(_hostingEnvironment.ContentRootPath, "QtBinariesWindows");
//Assign WebKit settings to HTML converter
htmlConverter.ConverterSettings = settings;
//Convert URL to PDF
PdfDocument document = htmlConverter.Convert("https://www.google.com");
MemoryStream stream = new MemoryStream();
document.Save(stream);
return File(stream.ToArray(),   System.Net.Mime.MediaTypeNames.Application.Pdf, "Output.pdf");
}

7. Build and run the application, the website will open in the browser, then, you can export HTML to PDF.
8. By exporting HTML to PDF, you will get the PDF document as follows.

A complete working sample can be downloaded from HTMLtoPDF_Windows.zip

Take a moment to peruse the documentation for Converting HTML to PDF, where you will find various options for URL to PDF, HTML string to PDF, and hyperlinks.