# FileID

## Content

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

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

# Type Alias: FileID

> **FileID** = `object`

Defines ID of PDF file.

## Properties

### changingID

> **changingID**: `number`[]

Gets or sets 16-byte array defining  a changing identifier based on the file's contents at the time it was last updated.

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### permanentID

> **permanentID**: `number`[]

Gets or sets 16-byte array defining a permanent identifier based on the contents of the file at the time it was originally
created and does not change when the file is incrementally updated.