### Install ConvertAPI JavaScript Client

Source: https://github.com/convertapi/convertapi-library-js/blob/master/README.md

Install the ConvertAPI JavaScript client library using npm. Ensure you are using version 1.1 or compatible.

```sh
npm i convertapi-js@~1.1
```

--------------------------------

### Configure ConvertAPI Authentication

Source: https://github.com/convertapi/convertapi-library-js/blob/master/README.md

Initialize the ConvertApi client with your authentication token. Obtain your token from the ConvertAPI website.

```js
import ConvertApi from 'convertapi-js'
let convertApi = ConvertApi.auth('api-token')
```

--------------------------------

### Convert Local DOCX to PDF

Source: https://github.com/convertapi/convertapi-library-js/blob/master/README.md

Convert a local DOCX file to PDF using the ConvertAPI client. The file is uploaded via an input element.

```js
let params = convertApi.createParams()
params.add('file', elFileInput.files[0])
let result = await convertApi.convert('docx', 'pdf', params)

// Get result file URL
let url = result.files[0].Url
```

--------------------------------

### Convert Remote PPTX to PDF

Source: https://github.com/convertapi/convertapi-library-js/blob/master/README.md

Convert a remote PPTX file to PDF by providing its URL. The library handles fetching the remote file for conversion.

```js
let params = convertApi.createParams()
params.add('file', new URL('https://cdn.convertapi.com/test-files/presentation.pptx'))
let result = await convertApi.convert('pptx', 'pdf', params)

// Get result file URL
let url = result.files[0].Url
```

--------------------------------

### Convert PDF to JPG with Additional Parameters

Source: https://github.com/convertapi/convertapi-library-js/blob/master/README.md

Convert a PDF file to JPG, applying specific conversion parameters like image scaling and dimensions. Refer to the ConvertAPI documentation for available parameters.

```js
// Converting PDF to JPG file
let params = convertApi.createParams()
params.add('file', e.currentTarget.files[0])
params.add('ScaleImage', 'true')
params.add('ScaleProportions', 'true')
params.add('ImageHeight', '300')
params.add('ImageWidth', '300')
let result = await convertApi.convert('pdf', 'jpg', params)

// Get result file URL
let url = result.files[0].Url
```

--------------------------------

### Configure ConvertAPI with Alternative Domain

Source: https://github.com/convertapi/convertapi-library-js/blob/master/README.md

Use an alternative domain for ConvertAPI, such as a regional endpoint, by specifying the domain URL in the authentication method. This is useful for optimizing latency.

```js
let convertApi = ConvertApi.auth('api-token', 'https://eu-v2.convertapi.com/')
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.