High-performance HTML-to-PDF for .NET
CobaltPDF was built with one goal: make HTML-to-PDF conversion in .NET fast, reliable, and effortless. We believe developers shouldn't have to wrestle with clunky APIs, fragile rendering engines, or bloated dependencies just to produce a PDF.
Powered by Chromium and designed for modern .NET, CobaltPDF handles the complexity of browser-grade rendering so you can focus on building great software.
Pool-managed Chromium instances, async-native architecture, and intelligent resource reuse keep memory low and throughput high.
A clean, fluent API that feels natural to .NET developers. Generate a PDF from a URL or HTML string in as little as three lines of code.
Comprehensive documentation, real-world examples, and first-class ASP.NET Core integration so you're productive from minute one.
Built-in wait strategies, automatic crash recovery, and configurable timeouts ensure consistent output in production environments.
CobaltPDF is developed and maintained by Modus Squared Limited, a UK-based software company focused on developer tooling for the .NET ecosystem. We're committed to shipping well-crafted libraries that solve real problems and stay out of your way.
See what CobaltPDF can do for your project.