Convert Markdown to PDF in C#

MarkdownToPdfConverter is Markdown to DOCX, then DOCX to PDF, in one call. Everything the Markdown converter guarantees carries over: nothing reaches the network or the disk.

using DocToolkit;

string markdown = "# Invoice 2026-114\n\nDue on receipt";
byte[] pdf = MarkdownToPdfConverter.Convert(markdown);
File.WriteAllBytes("output.pdf", pdf);

What it needs

No browser, headless or otherwise.
No Office install, and no LibreOffice.
No native files: managed code only.
No network at runtime, unless you ask for it.

Good to know

Synchronous: Convert takes the Markdown as a string and returns the PDF as a byte[].
An ordered list that starts below 1, such as 0. item, is refused by the PDF stage, though it converts to DOCX without trouble.
ConvertWithReport reports on the Markdown to DOCX half only; the PDF render reports nothing.
The fidelity limits of DOCX to PDF apply here too.

Install

dotnet add package Ank.DocToolkit

NuGet Documentation GitHub

Other conversions

Everything DocToolkit converts