Is my document or Markdown text uploaded to any server?

No. Processing is 100% client-side in your web browser using HTML5 Canvas and local browser APIs. Your text, code snippets, and images never leave your device.

What Markdown specifications and extensions are supported?

We support standard CommonMark (headings, lists, blockquotes, code, links, images, emphasis) as well as GitHub Flavored Markdown (GFM) including tables, task lists, strikethrough, autolinks, and language-tagged code blocks.

How do I convert a GitHub README.md file to PDF?

Copy the raw text of your `README.md` file on GitHub, paste it into our split-screen editor, select your preferred theme (such as Technical Documentation), and click 'Download PDF'.

Can I customize the PDF page size and orientation?

Yes. You can select between A4, Letter, Legal, and A3 page sizes in both Portrait and Landscape orientations.

How do margin settings work?

You can choose preset margins—Normal (20mm), Narrow (10mm), Wide (30mm)—or enter custom millimeter measurements for top, bottom, left, and right margins.

Which programming languages support code syntax highlighting?

Syntax highlighting is automatically applied for JavaScript, TypeScript, HTML, CSS, JSON, Python, Java, C++, C#, SQL, Bash, Shell, PHP, Markdown, Rust, Go, YAML, and XML.

What happens if a code block or line is very long?

Code blocks feature automatic word-wrapping and horizontal containment, ensuring long code lines never overflow the PDF page boundaries or get clipped.

How are Markdown tables rendered in the PDF?

Tables are styled with clean cell borders, background zebra striping, and text wrapping. Headers automatically repeat at the top of subsequent pages when a table spans across a page break.

Can I add page numbers to the exported PDF?

Yes. You can enable automatic page numbering in the PDF settings and choose formats such as 'Page X of Y', 'Page X', or 'X'.

How do I add a custom running header and footer?

Use the Document Furniture section in the PDF customizer drawer to type custom header and footer text that appears at the top and bottom of every generated page.

Can I generate an automatic Table of Contents?

Yes. Enable the 'Table of Contents' option to automatically extract all H1, H2, and H3 headings and insert a structured TOC at the beginning of your document.

Does this tool support automatic section numbering?

Yes. Toggling 'Section Numbering' prefixes all headings with hierarchical section numbers (e.g., 1. Introduction, 1.1 Overview, 1.1.1 Specs).

Can I add a Cover Page to my document?

Yes. You can enable the Cover Page builder to add a dedicated first page with document Title, Subtitle, Author Name, Organization, and Date.

What font options are available?

You can select from clean modern sans-serif (Inter/System), classic serif (Merriweather/Georgia), or monospace developer fonts (JetBrains Mono/Fira Code).

How do document themes work?

Themes apply curated CSS styling palettes. Options include Clean Modern, Minimalist Monochrome, Corporate Slate, Technical Documentation, Academic Serif, Executive Crimson, and Tech Resume.

Can I embed images in my Markdown document?

Yes. You can use standard Markdown image syntax (`![alt](url)`). Images are constrained to max-width 100% so they never overflow PDF margins.

What happens if an image URL is broken or fails to load?

The rendering engine displays a clean alt-text fallback block rather than crashing or distorting the PDF layout.

How are task lists and checkboxes formatted?

GFM task lists (`- [ ]` and `- [x]`) render as interactive styled checkboxes with proper alignment and strike-through text for completed items.

Can I write inline HTML inside my Markdown?

Safe inline HTML tags (such as ` `, ` `, ` `, ` `, ` `) are safely parsed and rendered in the PDF preview.

Is there a word, character, and reading time counter?

Yes. The editor status bar displays real-time word count, character count, line count, paragraph count, and estimated reading time.

Does the editor support keyboard shortcuts?

Yes. Key shortcuts include Tab (indent), Shift+Tab (outdent), Ctrl+B / Cmd+B (bold), Ctrl+I / Cmd+I (italic), Ctrl+K / Cmd+K (link), and Ctrl+Z / Cmd+Z (undo).

How does Find & Replace work in the Markdown editor?

Click the Find & Replace button on the editor toolbar to open a search popover where you can search and replace terms across your document.

Are there pre-loaded sample Markdown templates?

Yes. You can load templates for GitHub README, Technical Architecture Spec, API Reference Documentation, Developer Resume, Academic Paper, and Executive Report.

How does desktop split-screen mode work?

On desktop screens, the editor and live preview render side-by-side. You can drag the pane divider or click preset ratio buttons (50/50, 40/60, 60/40).

How does the tool behave on mobile and tablet devices?

On mobile devices, the interface switches to tabbed navigation (`Editor`, `Preview`, `PDF Customizer`) so controls are easy to touch without horizontal scrolling.

Can I use 'Print / Save as PDF' instead of downloading?

Yes. Selecting 'Print / Save as PDF' triggers your browser's native print dialog with built-in vector PDF saving capability.

What is the difference between direct download and browser print export?

Direct download generates a instant `.pdf` file via canvas compilation. Browser print export uses native web page printing for pure vector text and crisp high-DPI scaling.

Can I set PDF document metadata like Title and Author?

Yes. In the PDF Customizer drawer, you can specify document Title, Author, Subject, and Keywords that are embedded into the exported PDF file properties.

How are math equations or LaTeX block quotes handled?

Block quotes and mathematical notation formatted in clean text or code blocks are preserved and styled cleanly in the PDF.

Is there a limit on how long the Markdown document can be?

Because rendering happens locally in your browser memory, you can convert multi-page documentation, multi-thousand word books, or extensive reports without arbitrary length limits.

Why does my preview update smoothly without typing lag?

Preview rendering is debounced (180ms delay), ensuring smooth typing performance even in large documents.

Can I copy the raw Markdown back out of the editor?

Yes. Click the 'Copy Markdown' button on the toolbar to copy all text to your clipboard.

How do I clear the editor to start a new document?

Click the 'Clear Editor' button. A confirmation prompt prevents accidental deletion of active work.

Does this tool work completely offline?

Once the web app page is loaded in your browser, core Markdown compilation and PDF export function without requiring an internet connection.

Does this tool require software installation, CLI tools, or Pandoc?

No. Everything runs inside your standard web browser (Chrome, Edge, Firefox, Safari) without extensions or downloads.

Can I convert Markdown files into a resume or CV?

Yes! Load the 'Developer Resume' template, select the 'Tech Resume' theme, adjust to 10mm narrow margins, and export a clean PDF.

How are blockquotes styled?

Blockquotes are styled with subtle left accent borders, italicized typography, and light background shading for maximum legibility.

Can I adjust line height and font size?

Yes. Font size is adjustable from 12px to 18px, and line height can be set to Compact (1.3), Normal (1.5), or Relaxed (1.8).

How are horizontal rules (`---`) rendered?

Horizontal rules render as clean subtle divider lines separating visual sections of your PDF document.

Is this tool completely free to use?

Yes. ImageMagixOnline provides 100% free online tools with no registration, subscriptions, or hidden limits.

Can I use this tool on Mac, Windows, Linux, Android, and iOS?

Yes. It works across all modern desktop, tablet, and mobile operating systems.

Does the preview support dark mode?

You can select dark code syntax highlighting themes or dark UI preview themes while keeping your exported PDF formatted on clean white print pages.

How does page break prevention work for headings?

CSS `break-after: avoid` rules automatically keep headings attached to the following paragraph, preventing orphaned section titles.

What should I do if a large document takes a few seconds to compile?

A progress bar displays compilation steps ('Parsing Markdown', 'Applying Theme', 'Generating Pages'). Large multi-page documents compile within 1–2 seconds.

Why choose ImageMagixOnline over competitor converters?

We offer 100% client-side privacy, live split-screen preview, full GFM table/code support, custom typography/margins, header/footer page numbers, and zero server uploads.

Load Sample:

Markdown Source

# ImageMagixOnline Markdown Engine

![Build Status](https://img.shields.io/badge/build-passing-brightgreen) ![License](https://img.shields.io/badge/license-MIT-blue) ![Privacy](https://img.shields.io/badge/privacy-100%25--client--side-purple)

Welcome to the **ImageMagixOnline Markdown Engine**. This high-performance suite enables local in-browser compilation of CommonMark and GitHub Flavored Markdown (GFM) into publication-grade PDF documents.

## Key Features

- **Client-Side Compilation**: Zero server uploads, ensuring 100% data privacy.
- **GFM Parity**: Native support for tables, task lists, and syntax highlighting.
- **Page Geometry Control**: Customizable page sizes (A4, Letter, Legal, A3) and margins.

---

## Code Example

```typescript
interface DocumentConfig {
  pageSize: 'A4' | 'Letter' | 'Legal';
  marginMm: number;
  orientation: 'portrait' | 'landscape';
}

export function compileDocument(content: string, config: DocumentConfig): Promise<Blob> {
  console.log('Compiling document client-side...');
  return Promise.resolve(new Blob([content], { type: 'application/pdf' }));
}
```

## System Benchmarks

## Checklist

- [x] Implement split-screen desktop editor
- [x] Support GFM table cell alignments
- [x] Build automated Table of Contents generator
- [ ] Add custom watermark export mode

200 words1535 chars44 lines

⏱ ~1 min read

Rendered Document Preview

A4 • portrait

ImageMagixOnline PDF Studio2026-08-15

ImageMagixOnline Markdown Engine

Welcome to the ImageMagixOnline Markdown Engine. This high-performance suite enables local in-browser compilation of CommonMark and GitHub Flavored Markdown (GFM) into publication-grade PDF documents.

Key Features

Client-Side Compilation: Zero server uploads, ensuring 100% data privacy.
GFM Parity: Native support for tables, task lists, and syntax highlighting.
Page Geometry Control: Customizable page sizes (A4, Letter, Legal, A3) and margins.

Code Example

TYPESCRIPT
interface DocumentConfig {
  pageSize: 'A4' | 'Letter' | 'Legal';
  marginMm: number;
  orientation: 'portrait' | 'landscape';
}

export function compileDocument(content: string, config: DocumentConfig): Promise<Blob> {
  console.log('Compiling document client-side...');
  return Promise.resolve(new Blob([content], { type: 'application/pdf' }));
}

System Benchmarks

Metric	Target	Result	Status
Parsing Latency	< 50ms	18ms	✅ Pass
PDF Render Time	< 1.5s	0.8s	✅ Pass
Privacy Security	100% Local	Certified	✅ Pass

Checklist

Implement split-screen desktop editor
Support GFM table cell alignments
Build automated Table of Contents generator
Add custom watermark export mode

Confidential & ProprietaryPage 1 of 1

PDF Setup

Page Size

Orientation

Margins

Document Theme

Code Syntax Theme

Header Text

Footer Text

Page Numbers

Markdown to PDF Document Studio

100% Client-Side

Author Markdown, GitHub READMEs, and technical docs with live split-screen preview and instant PDF export.

Zero Server Uploads

GFM Syntax Parity

Markdown to PDF Document Studio Preview Light

Privacy First

100% Client-side

100% Free

No Account Required

GFM Support

Tables, Code & Math

Vector PDF

Direct & Native Print

Free Online Markdown to PDF Converter & Document Studio

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Facing issues or want to request a feature?

Let us know immediately! We would love to hear your feedback.

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Code Example

TYPESCRIPT

interface DocumentConfig {
  pageSize: 'A4' | 'Letter' | 'Legal';
  marginMm: number;
  orientation: 'portrait' | 'landscape';
}

export function compileDocument(content: string, config: DocumentConfig): Promise<Blob> {
  console.log('Compiling document client-side...');
  return Promise.resolve(new Blob([content], { type: 'application/pdf' }));
}

Metric

Target

Result

Status

Parsing Latency

< 50ms

18ms

✅ Pass

PDF Render Time

< 1.5s

0.8s

✅ Pass

Privacy Security

100% Local

Certified

✅ Pass