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

# Check source PDF availability



## OpenAPI

````yaml /openapi.json head /documents/{docId}/pdf
openapi: 3.0.3
info:
  title: MKK Structured Data API
  version: 0.1.0
  description: >-
    Read-only JSON API for normalized MKK/VYK PDF extraction results, portfolio
    entries, and data-quality review queues.
servers:
  - url: https://mkk.celebi.me/api
security: []
tags:
  - name: System
  - name: Funds
  - name: Sections
  - name: Documents
  - name: Line Items
  - name: Portfolio
  - name: Stocks
  - name: Quality
  - name: Exports
paths:
  /documents/{docId}/pdf:
    head:
      tags:
        - Documents
      summary: Check source PDF availability
      operationId: headDocumentPdf
      parameters:
        - $ref: '#/components/parameters/DocIdPath'
      responses:
        '200':
          description: Source PDF exists.
        '404':
          description: The requested resource was not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  parameters:
    DocIdPath:
      name: docId
      in: path
      required: true
      description: Internal document id.
      schema:
        type: integer
        minimum: 1
  schemas:
    ErrorResponse:
      type: object
      properties:
        error:
          type: string
        routes:
          type: array
          items:
            type: string

````