---
get:
  summary: Get a related file

  tags:
    - Get

  description: |
    **Get a file related to a document.**

    This can be used to get author or signatory attachments by looking up their
    respective `file_id` the Document JSON.

    The optional `filename` parameter in the URL can be set to any valid file name.
    This allows you to download the file with user-specified file name in the
    browser.

    *OAuth Privileges required: `DOC_CHECK`*

  parameters:
    - $ref: ../../../../extras/parameters.yaml#/DocumentID
    - $ref: ../../../../extras/parameters.yaml#/FileID
    - $ref: ../../../../extras/parameters.yaml#/SignatoryParamForFile

  responses:
    200:
      description: |
        The file

        Usually an image (JPG, PNG) or PDF, but this may change.
        `Content-Type` header will be set according to the file type.