iA Presenter Markdown

Write and edit markdown files for iA Presenter, which generates beautiful slides from plain text.

What is iA Presenter?

iA Presenter is a macOS/iOS/iPadOS app from Information Architects (iA) — the same company that makes iA Writer. It takes markdown files and renders them as presentation slides with automatic responsive layout. The app emphasizes story-first presentation design: you write your script, and the design adapts to your content rather than forcing content into templates.

Key differentiator: visible/speaker notes separation is controlled by indentation, not by a separate notes panel. This means your markdown file contains both what you show and what you say, distinguished only by whether lines are tab-indented.

The Core Insight: Visible vs Speaker Notes

iA Presenter's key innovation is separating what the audience sees from what you say (speaker notes/teleprompter). This is controlled by indentation:

Element	Visibility	How to Write
Headings	ALWAYS visible	`#`, `##`, `###` at line start
Tab-indented text	Visible on slide	`⇥Text here` (literal tab character)
Plain paragraphs	Speaker notes only	No indent — audience never sees this
Images/videos/tables	Visible by default	URL or path on its own line
Lists	Visible only if tabbed	`⇥1. Item` or `⇥- Item`

The tab character is load-bearing. A leading tab makes body text visible to the audience. Without it, the text becomes speaker notes (shown in teleprompter, hidden from audience).

File Format

iA Presenter uses .iapresenter bundles (directories), not plain .md files:

MyPresentation.iapresenter/
├── assets/          # Images, media (optional)
├── info.json        # Metadata
└── text.md          # The markdown content

info.json template:

{
  "creatorIdentifier" : "net.ia.presenter",
  "net.ia.presenter" : {},
  "transient" : false,
  "type" : "net.daringfireball.markdown",
  "version" : 2
}

To create a new presentation programmatically:

Create MyPresentation.iapresenter/ directory
Create assets/ subdirectory (can be empty)
Create info.json with the template above
Create text.md with your markdown content

When to Use

Creating new presentations in iA Presenter format
Editing existing .presenter or .md files for iA Presenter
Validating that markdown will render correctly as slides
Converting standard markdown to iA Presenter format
Working in the iCloud~net~ia~presenter folder

When NOT to Use

Standard markdown files (no iA Presenter involvement)
PowerPoint or Google Slides (use pptx skill instead)
Reveal.js, Marp, or other slide frameworks (different syntax)
HTML/CSS slide decks

Slide Structure

Slide Separation

Content for slide 1

---

Content for slide 2

Three dashes (---) on their own line create a new slide.

Heading Hierarchy

# Title Slide Heading (H1 - largest)
## Section Heading (H2 - major sections)
### Content Heading (H3 - within slides)

Headings are ALWAYS visible. Use them for the key message the audience must see.

Basic Slide Pattern

### Visible Heading
	Visible subtitle or key point (TAB-indented)

Speaker notes go here without indentation. The audience never sees this.
You can write as much context as you need for yourself.

---

Text Visibility Examples

Title Slide

	Fast and Focused
# Main Title
	Subtitle line

This introductory paragraph is speaker notes - invisible to audience.

Result: Three visible lines stacked (subtitle, title, subtitle), with speaker notes in teleprompter.

Content Slide

### The Key Point
	The heart of a great presentation is the message. Get the script right before anything else.

Most presentation tools ask you to choose a design first. iA Presenter flips the process. You focus on what matters: your story.

Result: Heading + one visible paragraph. The longer explanation is speaker notes.

Multi-Column Layout

### Column One
	Description for the first column goes here.

### Column Two
	Description for the second column goes here.

Speaker notes for this slide.

Result: Auto-arranges as two columns side-by-side.

Visible Lists

### Table of Contents
	1. Write
	2. Structure
	3. Iterate
	4. Design
	5. Action

The numbered list above is visible because each line is tab-indented.

Images

Basic Image

https://example.com/image.jpg

Or a local path:
/Theme/image.webp

Images are visible by default. Just put the URL or path on its own line.

Image with Metadata

https://example.com/screenshot.png
x: left
y: top
title: "Caption text"

Available metadata:

x: — horizontal position: left, center, right
y: — vertical position: top, center, bottom
size: — sizing: contain, cover
background: — true to place behind other elements
filter: — lighten, darken, grayscale, sepia, blur
opacity: — 0% to 100%
title: — caption/alt text

Image Captions with H4

#### Caption introducing the image

/assets/photo.jpg

Or image first, caption below:

/assets/photo.jpg

#### Caption below the image

Multiple Images (Grid)

https://example.com/image1.jpg

https://example.com/image2.jpg

https://example.com/image3.jpg

https://example.com/image4.jpg

These images auto-arrange into a grid layout.

Image + Text Layout

### Heading on Left
	Visible description text that appears alongside the image.

https://example.com/image.png
x: right
y: top

Speaker notes explaining what we're showing.

Result: Text on left, image on right.

Inline Formatting

Standard markdown formatting works:

**bold** — bold
*italic* — italic
~~strikethrough~~ — strikethrough
==highlight== — highlighted text
[link text](url) — hyperlinks
`code` — inline code
$x^2$ — inline LaTeX math
// comment — comment (only you see)

Common Patterns

Kicker (Small Text Above Title)

	Small kicker text
# Main Title
	Subtitle below

Tab-indented text directly above a title creates a "kicker" — small headline often seen above main titles.

Section Divider

## 1. Write
	Start With a Script

Brief visible tagline. Then your speaker notes expand on it below.

---

Quote/Callout Slide

	**Key insight in bold.** Additional visible context that supports the main point.

The rest of your speaking notes. Expand, give examples, tell stories.

Closing Slide

## Now go and move mountains.

Final thoughts in speaker notes. Link to resources: [How-To](https://ia.net/presenter/how-to)

Validation Checklist

When reviewing iA Presenter markdown:

Tab characters exist — Visible body text MUST start with a literal tab (not spaces)
Slides are separated — --- between each slide
One idea per slide — Keep slides focused
Headings are concise — They're always visible; make them count
Speaker notes are useful — Don't waste the teleprompter space
Images have paths — URLs or local paths on their own lines

Common Mistakes

Mistake	Problem	Fix
Spaces instead of tabs	Text won't be visible	Use literal tab character
Too much visible text	Stuffed slides bore audiences	Move detail to speaker notes
Missing `---`	Slides won't separate	Add `---` between slides
Forgetting speaker notes	Wasting the teleprompter	Add context below visible content

Generating New Presentations

When creating iA Presenter markdown from scratch:

Start with the story — Write the narrative first
Identify key points — These become headings
Decide what audience sees — Tab-indent only essential text
Add speaker notes — Context, examples, transitions
Add images last — URLs/paths with positioning metadata
Review slide count — --- separators should match intended slides

Example: Complete Slide

### Tell Your Story
	The heart of a great presentation is the message. Get the script right before anything else.

Most presentation tools ask you to choose a design and then adjust your story to fit it. iA Presenter flips the process.

Start with what you want to say. The design comes later, and it adapts to your content — not the other way around.

---

Visible to audience:

"Tell Your Story" (heading)
"The heart of a great presentation..." (tab-indented paragraph)

Speaker notes (teleprompter only):

"Most presentation tools ask you to choose..."
"Start with what you want to say..."

Layout Algorithm

Presenter auto-selects layouts based on:

Number of visual blocks (cells) in the slide
Types of graphics in each block
First heading level of each block
Order of blocks

Content	Result
2-3 elements separated by blank lines	Side-by-side columns
4+ elements	Grid layout
H4 + image	Caption layout
Image with `background: true`	Background image behind text

Cells: Content separated by blank lines goes into different cells. One element per cell usually looks better.

Anti-Patterns

Pattern	Problem	Fix
Spaces for indentation	Content invisible on slides	MUST use literal tab characters
Missing `---` separators	Slides run together	Add `---` between each slide
Empty speaker notes	Wasting teleprompter, no speaking context	Add narrative below visible content
All-headings slides	Headings are always visible — no notes	Balance headings with tab-indented text
Skip validation	Broken slides discovered during presentation	Test in iA Presenter app before presenting
Create .md instead of .iapresenter	Won't open correctly in app	Create bundle with text.md + info.json

Full Reference

See references/syntax-reference.md for complete documentation including:

All text formatting (highlight, superscript, subscript)
Footnotes and citations
LaTeX math
Code blocks with syntax highlighting
Tables
Custom themes and CSS classes
Layout CSS classes for theming

ia-presenter