# Mermaid Diagrams in Markdown PDF

Fenced `mermaid` blocks render as crisp monochrome graphics in the PDF.

## Flowchart

```mermaid
flowchart TD
  A[Write Markdown] --> B[Add Mermaid]
  B --> C[Compile PDF]
  C --> D[Share or print]
```

## Sequence diagram

```mermaid
sequenceDiagram
  participant User
  participant API
  participant Chrome
  User->>API: POST /api/convert
  API->>Chrome: Render + print
  Chrome-->>API: PDF buffer
  API-->>User: Download
```