Hi Product Hunt 👋 I'm James, the developer behind CobaltPDF. I built it out of frustration. Every .NET HTML-to-PDF library I tried had the same problem: modern CSS rendered badly, JavaScript got ignored, or I had to babysit a pile of native print drivers just to get a clean page out. Generating a PDF that actually matched what I saw in the browser was way harder than it should be. CobaltPDF takes a different route: it drives a real Chromium engine via Playwright, so your PDF matches Chrome exactly: flexbox, grid, web fonts, JS-rendered charts, all of it. You add one NuGet package and call it from C#. No print drivers, no surprises. What it does well: - Pixel-accurate rendering of real-world HTML/CSS/JS - Headers, footers, page numbers, custom page sizes - Browser pooling, so it handles concurrent requests cleanly under load - Works in web apps, APIs and background jobs It's a commercial library with free unlimited evaluation, so you can try it properly before deciding. I'd genuinely love feedback from other .NET devs, what's missing, what would make it a no-brainer for your stack. Happy to answer anything here.

CobaltPDF

Generate pixel-perfect PDFs from HTML in any .NET app

Generate pixel-perfect PDFs from HTML in any .NET app