# DownloadCertificateImage

Download an image for this certificate

`GET /api/v2/companies/{companyId}/certificates/{id}/attachment`

**API:** AvaTax API
**Tag:** Certificates
**API Version:** v2
**Base URL:** https://sandbox-rest.avatax.com/
**Accepts:** `application/octet-stream`
**Authentication:** API Key (`Authorization` in header) or OAuth 2.0 or Basic (username + license key)

Source: https://developer.avalara.com/products/crossborder/api/methods/Certificates/DownloadCertificateImage/

## Description

Download an image or PDF file for this certificate.
            
This API can be used to download either a single-page preview of the certificate or a full PDF document.
To retrieve a preview image, set the `$type` parameter to `Jpeg` and the `$page` parameter to `1`.
            
A certificate is a document stored in either AvaTax Exemptions or CertCapture.  The certificate document
can contain information about a customer's eligibility for exemption from sales or use taxes based on
criteria you specify when you store the certificate.  To view or manage your certificates directly, please
log onto the administrative website for the product you purchased.
            
Before you can use any exemption certificates endpoints, you must set up your company for exemption certificate data storage.
Companies that do not have this storage system set up will see `CertCaptureNotConfiguredError` when they call exemption
certificate related APIs. To check if this is set up for a company, call `GetCertificateSetup`.  To request setup of exemption
certificate storage for this company, call `RequestCertificateSetup`.

### Security Policies

* This API requires one of the following user roles: AccountAdmin, AccountOperator, AccountUser, AvaTaxOnlyAccountAdmin, AvaTaxOnlyAccountUser, AvaTaxOnlyCompanyAdmin, AvaTaxOnlyCompanyUser, BatchServiceAdmin, CompanyAdmin, CompanyUser, CSPTester, SSTAdmin, TechnicalSupportAdmin, TechnicalSupportUser.
* This API depends on the following active services:*Required* (all):  AvaTaxPro, ECMEssentials, ECMPro, ECMPremium, VEMPro, VEMPremium, ECMProComms, ECMPremiumComms.

## Parameters

| Name | Type | In | Required | Description |
|---|---|---|---|---|
| `companyId` | integer | path | Yes | The unique ID number of the company that recorded this certificate |
| `id` | integer | path | Yes | The unique ID number of this certificate |
| `$page` | integer | query | No | If you choose `$type`=`Jpeg`, you must specify which page number to retrieve. |
| `$type` | string | query | No | The data format in which to retrieve the certificate image |
| `X-Avalara-Client` | string | header | No | Identifies the software you are using to call this API.  For more information on the client header, see [Client Headers](https://developer.avalara.com/avatax/client-headers/) . |

## Responses

| Status | Description | Schema |
|---|---|---|
| 200 | OK |  |
| 400 | Bad Request | `ProblemDetails` |
| 401 | Unauthorized | `ProblemDetails` |
| 404 | Not Found | `ProblemDetails` |

## Example Request

```bash
curl -X GET "https://sandbox-rest.avatax.com/api/v2/companies/{companyId}/certificates/{id}/attachment" \
  -H "Authorization: Basic <credentials>" \
  -H "Accept: application/json"
```