---
title: "Download Document"
method: GET
path: "/api/document/{document_ext_id}/download"
tags: ["document"]
---

# Download Document

`GET /api/document/{document_ext_id}/download`

Download a document by its external ID.
Retrieves and decrypts the document for downloading as an attachment.

## Path parameters

- `document_ext_id` string, required

## Headers

- `workspace-key` string

## Response `200`

Successful Response

- unknown

## Other responses

- `422` — Validation Error

## Changes

- **2025-10-28** `849d5e8732f6` — 1 info
  - added the new optional `header` request parameter `workspace-key`
- **2025-10-06** `8d3e894e6c0b` — 1 breaking
  - the response's body type/format changed from `object`/`` to ``/`` for status `200`
- **2025-08-21** `84efd317dcde` — 1 breaking
  - the response's body type/format changed from ``/`` to `object`/`` for status `200`

[Change history](https://skmtc.dev/arbicity/apis/arbi/changes/api/document/:document_ext_id/download/get.md)

---

[API](https://skmtc.dev/arbicity/apis/arbi.md) · [All operations](https://skmtc.dev/arbicity/apis/arbi/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/arbicity/arbi/revisions/1f956ac3d1c1/schema)