# Download the signed document (/docs/api-reference/signature-requests/get-signed-document)

The completed request's sealed PDF: every document with the signatures and values filled in, then a certificate of completion (signers, how they were identified, what they agreed to, the documents' SHA-256 and the audit trail). coss.com's seal makes any later change visible in PDF viewers. Ready once `signed_document` is set, which the `sign_request.completed` webhook announces.

`GET https://api.coss.com/v1/sign/requests/{id}/signed_document`

Authenticate with your API key as a bearer token (`Authorization: Bearer coss_test_…`). Responses are JSON with snake_case fields; errors are `{ error: { type, code, message, param?, issues?, request_id } }` (https://coss.com/docs/api-reference/errors.md).

## Path parameters

- `id` (string, required): The signature request's id.

## Example request

TypeScript (the `coss` package):

```ts
import { Coss } from "coss";

const coss = new Coss({
  apiKey: process.env.COSS_API_KEY,
  baseUrl: "https://api.coss.com",
});

const { data, error } = await coss.sign.requests.signedDocument("sreq_01k7c8m4q2f3e9v6t5r1n0p8yz");
```

HTTP:

```sh
curl -X GET "https://api.coss.com/v1/sign/requests/sreq_01k7c8m4q2f3e9v6t5r1n0p8yz/signed_document" \
  -H "Authorization: Bearer $COSS_API_KEY"
```

## Response 200

The sealed PDF.

Content type: application/pdf.

## Errors

- `400`: The `Coss-Version` header names an unknown API version (`invalid_api_version`).
- `401`: The API key is missing, invalid, revoked or expired (`authentication_error`).
- `403`: The API key lacks the permission this endpoint needs (`permission_error`), or its organization is suspended (`organization_suspended`).
- `404`: No signature request with this id exists in the API key's environment (`not_found`).
- `422`: The request isn't completed, or its document is still being sealed (`signed_document_not_ready`).
- `429`: Too many requests with this API key (`rate_limited`), or too many requests with invalid keys from this address (`too_many_failed_authentications`). Retry after `Retry-After` seconds. Successful responses carry `RateLimit-Limit`, `RateLimit-Remaining` and `RateLimit-Reset` (seconds until the limit is fully restored).
- `500`: Unexpected server error (`api_error` / `internal_error`).
- `503`: Sign isn't available in this deployment yet (`sign_unavailable`).