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Start building in 60 seconds

CobaltPDF runs in trial mode straight from NuGet — no registration, no product key, no time limit. Just install and go.

1

Install the NuGet package

Run a single command in your .NET project — the package includes everything, Chromium bundled.

Terminal 
dotnet add package CobaltPdf
2

Write your first PDF

No product key needed — the library works immediately in trial mode.

Program.cs 
using CobaltPdf;

var pdf = await CobaltPdfBuilder
    .CreateBuilder()
    .BuildAsync();

await pdf.RenderHtmlAsync("<h1>Hello, CobaltPDF!</h1>", "hello.pdf");
3

That’s it — you’re generating PDFs

Trial mode is fully functional with all features enabled. The only difference is a small watermark on output. When you're ready for production, purchase a licence key on the pricing page.

No time limit

Evaluate for as long as you need. The trial never expires.

Full feature access

Every API is available — headers, footers, margins, JavaScript rendering, and more.

No key required

Simply install the NuGet package. No registration, no product key entry.

Watermark only

The only trial limitation is a small watermark on generated PDFs.

Ready for production?

Remove the watermark and unlock priority support with a licence key.

View Pricing