# FileSpecProperties

## Content

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

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

# Type Alias: FileSpecProperties

> **FileSpecProperties** = `object`

Provides options for the [PdfDocument#addEmbeddedFile](../classes/PdfDocument#addembeddedfile) method.

## Properties

### creationDate?

> `optional` **creationDate**: [`PdfDateTime`](PdfDateTime) \| `null`

The date and time when the embedded file was created.

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### description?

> `optional` **description**: `string`

The file description.

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### fileName

> **fileName**: `string`

The file name (it is used as the key, must not duplicate).

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### mimeType?

> `optional` **mimeType**: `string`

The file's MIME type.

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### modificationDate?

> `optional` **modificationDate**: [`PdfDateTime`](PdfDateTime) \| `null`

The date and time when the embedded file was last modified.