> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vellaro.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Download Invoice Pdf

> Stream the invoice PDF for the given order.

VEN-14: the sequential number is given on the first download only to a
paid order that is not cancelled or refunded. An unpaid order gets a pro
forma without number (header ``X-Document-Kind: proforma``); a cancelled or
refunded one never invoiced → 409 ``order.invoice_not_available``.



## OpenAPI

````yaml https://api.vellaro.io/openapi/admin.json get /api/v1/admin/orders/{order_id}/invoice.pdf
openapi: 3.1.0
info:
  title: Vellaro Admin API
  description: >-
    Store management under `/api/v1/admin`, for back ends and integrations.
    Every call takes `Authorization: Bearer <token>`: an admin API token or a
    staff user's token. The permissions of its role decide what it can do,
    always in its own store.
  version: 0.1.0
servers:
  - url: https://api.vellaro.io
    description: Produzione
security: []
tags:
  - name: Orders
    description: >-
      Orders and manual orders, payments, refunds, shipments, invoices, returns,
      customer subscriptions.
  - name: Products
    description: Products, variants, images, prices and discounts, product lookups.
  - name: Categories & catalog setup
    description: >-
      Categories, brands, attributes, options, filters, downloadable files,
      recurring profiles.
  - name: Inventory
    description: Stock of the variants and stock statuses.
  - name: Customers
    description: Customers, customer groups, custom fields.
  - name: Reviews & questions
    description: Moderation of product reviews and questions.
  - name: Promotions & coupons
    description: Coupons and gift vouchers.
  - name: Marketing
    description: Campaigns, newsletter subscribers, affiliates and their commissions.
  - name: Content
    description: >-
      CMS pages, menus, banners, information pages, flipbooks, media library,
      SEO URLs, email templates, translations.
  - name: Settings
    description: >-
      Store settings, email delivery, languages, currencies, physical stores,
      social login providers.
  - name: Shipping
    description: Couriers, shipping rates, weight and length classes.
  - name: Taxes & geo
    description: Tax classes, rates and rules; countries, zones and geo zones.
  - name: Integrations & modules
    description: >-
      Integrations, plugins and modules (Iute, extra warranty, Nextera, Financa
      5, WhatsApp, Firebase), outbound webhooks.
  - name: AI
    description: AI content generation and the settings of the AI shopping assistant.
  - name: Imports
    description: 'CSV imports and the universal import: runs, mappings, previews, undo.'
  - name: Reports & dashboard
    description: Dashboard figures and reports.
  - name: Users & API keys
    description: Staff users and roles, publishable keys, admin API tokens.
  - name: Audit
    description: The store's audit log.
paths:
  /api/v1/admin/orders/{order_id}/invoice.pdf:
    get:
      tags:
        - Orders
      summary: Download Invoice Pdf
      description: >-
        Stream the invoice PDF for the given order.


        VEN-14: the sequential number is given on the first download only to a

        paid order that is not cancelled or refunded. An unpaid order gets a pro

        forma without number (header ``X-Document-Kind: proforma``); a cancelled
        or

        refunded one never invoiced → 409 ``order.invoice_not_available``.
      operationId: download_invoice_pdf_api_v1_admin_orders__order_id__invoice_pdf_get
      parameters:
        - name: order_id
          in: path
          required: true
          schema:
            type: string
            format: uuid
            title: Order Id
        - name: lang
          in: query
          required: false
          schema:
            type: string
            description: Document language (it/en/sq)
            default: it
            title: Lang
          description: Document language (it/en/sq)
      responses:
        '200':
          description: Successful Response
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      security:
        - HTTPBearer: []
components:
  schemas:
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
  securitySchemes:
    HTTPBearer:
      type: http
      scheme: bearer

````

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