## DigitalSignatureCollection class

Provides a collection of digital signatures attached to a document.

```js
new DigitalSignatureCollection()
```

The constructor of DigitalSignatureCollection.

## Methods

| Name | Description |
| --- | --- |
| [add(digitalSignature)](#add) | Add one signature to DigitalSignatureCollection. |
| [iterator()](#iterator) | Get the enumerator for DigitalSignatureCollection, this enumerator allows iteration over the collection |

### add(digitalSignature) {#add}

Add one signature to DigitalSignatureCollection.

| Parameter | Type | Description |
| --- | --- | --- |
| digitalSignature | DigitalSignature | Digital signature in collection. |

### iterator() {#iterator}

Get the enumerator for DigitalSignatureCollection, this enumerator allows iteration over the collection

**Returns:** Iterator — `Iterator` The enumerator to iteration.