Extensions are the building blocks of SuperDoc. Every feature—from bold text to track changes—comes from an extension.

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Understanding extensions

Extensions provide:
  • Commands - Actions like toggleBold() or insertTable()
  • Schema - Define what can exist in documents
  • Behavior - Keyboard shortcuts, input rules, events

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Using extensions

You don’t typically configure extensions directly. SuperDoc handles it: 
// These commands come from extensions
editor.commands.toggleBold();        // Bold extension
editor.commands.insertTable();       // Table extension  
editor.commands.acceptAllChanges();  // TrackChanges extension

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Extension categories

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Core editing

Basic document capabilities:

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Advanced features

Complex functionality:

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Custom extensions

Build your own →

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How extensions work

  1. Registration - Extensions load with the editor
  2. Schema definition - Define nodes/marks
  3. Command registration - Add to editor.commands
  4. Event handling - React to changes