# MarkdownToPDF — Complete Documentation

> Free, privacy-first Markdown to PDF converter that runs entirely in your browser.

Website: https://markdowntopdf.in
Author: Yogendra Singh (https://yogendrasingh.in)

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## What is MarkdownToPDF?

MarkdownToPDF is a modern web application that converts Markdown documents into beautifully formatted PDF files. It runs entirely in your browser — your documents never leave your device. There are no uploads, no servers processing your content, and no accounts required.

## Who is it for?

- Developers writing technical documentation
- Students formatting research papers with math equations
- Writers who prefer Markdown for drafting content
- Anyone who needs to convert Markdown to PDF quickly and privately

## Key Features

### Live Preview
Real-time split-pane editor with resizable panels. See your Markdown rendered as you type with a side-by-side view. The panels can be resized to your preference.

### PDF Export
Generate print-ready PDF documents using the browser's native print dialog. The exported PDFs include proper page breaks, styled headings, code blocks, tables, and more.

### KaTeX Math Support
Full LaTeX math equation rendering via KaTeX. Supports both inline math ($E = mc^2$) and block equations. Perfect for academic papers, technical documentation, and scientific writing.

### Mermaid Diagrams
Create visual diagrams directly in Markdown using Mermaid syntax. Supports flowcharts, sequence diagrams, Gantt charts, class diagrams, and more.

### Syntax Highlighting
Code blocks are automatically highlighted with language-aware coloring. Supports 100+ programming languages including JavaScript, Python, TypeScript, Go, Rust, and more.

### GitHub Flavored Markdown (GFM)
Full support for GFM extensions including:
- Tables with alignment
- Task lists (checkboxes)
- Strikethrough text
- Autolinked URLs
- Line breaks

### Theme Support
Three-mode theme support: Dark, Light, and System. The editor, preview, and exported PDFs all respect the selected theme.

### Copy for AI
One-click copy of your Markdown content to clipboard, optimized for pasting into AI tools like ChatGPT, Claude, or Gemini.

### Drag & Drop Upload
Upload existing Markdown files by dragging and dropping them onto the editor. Supports .md, .markdown, .mdx, and .txt file formats.

### Fullscreen Mode
Toggle fullscreen mode for a distraction-free editing experience. The editor expands to fill the entire viewport.

### Local Storage Persistence
Your content is automatically saved to the browser's local storage. Close the tab, come back later — your work is still there.

### Formatting Toolbar
Built-in toolbar with buttons for common Markdown formatting: bold, italic, headings, links, images, code blocks, lists, and more. Includes undo/redo support.

## Privacy

MarkdownToPDF is built with privacy as a core principle:

- **No Data Collection**: We don't collect, store, or track any of your content.
- **No Server Processing**: All conversion happens in your browser. Nothing is uploaded.
- **No Tracking**: We only use minimal analytics (Google Analytics) to understand page visits — never your content.
- **No Sign-ups**: No accounts, no email collection, no personal data required.

## How It Works

1. **Write or Upload**: Type Markdown in the editor or drag-and-drop a .md file.
2. **Preview Live**: See your content rendered in real-time with full formatting.
3. **Export PDF**: Click "Download PDF" to generate a print-ready document.

## Technical Details

- Built with Next.js (App Router, static export)
- Written in TypeScript
- Styled with Tailwind CSS
- Uses react-markdown for Markdown rendering
- Uses KaTeX for math equations
- Uses Mermaid for diagram rendering
- Uses highlight.js for syntax highlighting
- Hosted on Cloudflare Pages
- Fully static — no backend server required

## Supported File Formats

- Input: .md, .markdown, .mdx, .txt
- Output: PDF (via browser print dialog)

## Browser Compatibility

Works in all modern browsers:
- Google Chrome (recommended)
- Mozilla Firefox
- Apple Safari
- Microsoft Edge

## Frequently Asked Questions

### Is my data secure?
Yes. Your data never leaves your browser. Everything is processed locally using JavaScript.

### Is MarkdownToPDF free?
Yes, completely free. No premium features, no sign-ups, no usage limits.

### Can I use this offline?
Once loaded, the core editing and preview features work offline. PDF export also works offline.

### What about math and diagrams?
Full KaTeX math support (inline and block) and Mermaid diagram support (flowcharts, sequence diagrams, etc.).

### How is the PDF generated?
The PDF is generated using your browser's native print functionality, ensuring consistent and high-quality output.

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Website: https://markdowntopdf.in
About: https://markdowntopdf.in/about