Converting Markdown with LaTeX Math to PDF

Writing math in Markdown is easy; getting those equations to render correctly in a PDF is where things stall. If you write $E = mc^2$ and your converter prints the dollar signs literally, you don’t have a math renderer — you have a plain text dump. This guide covers how to convert markdown to PDF with LaTeX math properly, using KaTeX, and why a browser tool avoids the heavyweight LaTeX install entirely.

Inline vs. display math

Markdown math comes in two flavors, both using familiar LaTeX syntax:

• Inline math sits in a sentence, wrapped in single dollar signs: The area is $A = \pi r^2$ for a circle.
• Display math stands on its own line, wrapped in double dollar signs:

$$
\int_{0}^{\infty} e^{-x^2}\,dx = \frac{\sqrt{\pi}}{2}
$$

A good renderer turns the first into properly typeset math within the line, and the second into a centered, full-size equation block. Subscripts, fractions, integrals, Greek letters, and matrices all work through standard LaTeX commands.

The install problem with Pandoc

Pandoc is the classic Markdown-to-PDF tool, and it produces beautiful math — but it does so by handing your document to a real LaTeX engine. To export a PDF, you typically need a TeX distribution such as TeX Live or MiKTeX installed, which can be several gigabytes. That’s a lot of setup if all you want is a one-off PDF with a few equations. The payoff is genuine: for a thesis with citations and custom templates, Pandoc plus LaTeX is the gold standard.

The browser approach with KaTeX

MarkdownToFile renders math with KaTeX, a fast typesetting library that runs entirely in your browser. There is no LaTeX engine to install and nothing to configure. You write the same $...$ and $$...$$ syntax, and the live preview typesets each equation as you type.

The steps:

1. Open the editor, or load the ready-made LaTeX example.
2. Write your Markdown with inline $...$ and display $$...$$ math. The preview renders KaTeX instantly.
3. Choose a theme — the Academic theme suits papers — set your page size, and download a vector PDF.

Because the conversion is client-side, the equations become real, selectable text in the PDF, and your document never leaves your machine.

How the options compare

Tool	Math engine	Install needed	Best for
MarkdownToFile	KaTeX (in browser)	None	Quick, private math PDFs
Pandoc	Full LaTeX (TeX Live/MiKTeX)	Pandoc + multi-GB TeX	Theses, citations, templates
Typora	MathJax/KaTeX	Paid desktop app	All-in-one desktop writing
Generic web converters	Often none	None	Usually leaves $ literal

A quick KaTeX coverage note

KaTeX supports a very large subset of LaTeX math: fractions, roots, sums, integrals, matrices, aligned environments, and most symbols. It does not run arbitrary LaTeX packages — if your document depends on exotic macros or a custom \usepackage, a full LaTeX engine via Pandoc is the better fit. For the math most people actually write, KaTeX renders it cleanly with none of the setup.

Where other tools win

Pandoc remains unmatched for scholarly work: BibTeX bibliographies, cross-references, and reusable templates are things a browser tool doesn’t do. If you’re writing a dissertation, install the LaTeX toolchain. MarkdownToFile’s strength is the opposite end of the spectrum — a private, instant, no-install way to turn equations into a clean PDF.

Bottom line

To convert markdown to PDF with LaTeX math without installing a multi-gigabyte LaTeX distribution, KaTeX in the browser is the fastest route. You get properly typeset inline and display equations as selectable PDF text, with zero setup.

Try it now with the LaTeX example in the editor, or see the dedicated LaTeX Markdown to PDF page.