# FontFeature

## Content

[**DsPdfJS API v9.1.3**](../README)

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[DsPdfJS API](../globals) / FontFeature

# Type Alias: FontFeature

> **FontFeature** = `object`

Identifies a typographic feature in the OpenType font.

## Properties

### applyLastAlternative?

> `optional` **applyLastAlternative**: `boolean`

Indicates whether the last alternative should be applied if the specified position exceeds the number of alternatives.

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### enabled?

> `optional` **enabled**: `boolean`

Indicates whether the feature should be enabled.

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### featureTag

> **featureTag**: `string`

The OpenType name identifier of the feature.

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### parameter?

> `optional` **parameter**: `number`

1-based position of the alternate glyph ID in Alternate Substitution lookup.