# Convert an HTML invoice to PDF in C#
> Turn an HTML and CSS invoice into a PDF in .NET with page numbers in the margin, without a browser or Chromium. MIT licensed, pure C#.
Available since 1.1.
Render an invoice written in HTML and CSS to a PDF, with a page footer.
## Short answer
Pass the HTML to `HtmlConverter.ConvertToPdf` from the `PdfNetStack.Html` package. The `@page` rule
sets the paper size and margins, and its `@bottom-center` margin box numbers the pages. No browser
runs, and nothing is fetched from the network.
```csharp title="recipe-html-invoice-to-pdf.cs"
#:package PdfNetStack.Html@1.2.0
using PdfNetStack.Html;
string html = """
Invoice 42
Invoice 42
Issued 2026-10-29. Payment due within 30 days.
| Item | Amount |
|---|
| Consulting, 8 hours | 800.00 EUR |
| Support plan | 200.00 EUR |
| Total | 1,000.00 EUR |
""";
byte[] pdf = HtmlConverter.ConvertToPdf(html);
File.WriteAllBytes("invoice-42.pdf", pdf);
```
## Variations
- `HtmlConverter.ConvertFileToDocument("invoice.html")` reads a file, and its style sheets, images
and fonts from the same folder.
- `ConvertToDocument` returns a `PdfDocument`, so the invoice can be signed, encrypted or saved as
PDF/A before it is written.
- Fonts declared with `@font-face` are embedded. The generic families `serif`, `sans-serif` and
`monospace` map to the standard PDF fonts, which need no embedding.
## Related
- [HTML to PDF](https://www.jadev-corp.com/guides/html-to-pdf/)
- [Create a Factur-X invoice](https://www.jadev-corp.com/recipes/pdf-a-3-xml-attachment/)
- API: [HtmlConverter](https://www.jadev-corp.com/api/pdfnetstack-html/htmlconverter/), [HtmlConverterOptions](https://www.jadev-corp.com/api/pdfnetstack-html/htmlconverteroptions/)
Source: https://www.jadev-corp.com/pdfnetstack/recipes/html-invoice-to-pdf/