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

# Generate LOA PDF for hand-signing (by ID)

> Generates a Letter of Authorization PDF pre-filled with enterprise data and a blank hand-signature line. Enterprise must have been submitted to the carrier first (has carrier_enterprise_id). Addresses a specific registration by ID.



## OpenAPI

````yaml /openapi.json post /v1/caller-trust/enterprise/{id}/generate-loa
openapi: 3.1.0
info:
  title: RevDesk v1 API
  version: 1.0.0
  description: >-
    Programmatic access to the RevDesk voice platform — calls, numbers, caller
    trust, and brands.
  contact:
    name: RevDesk
    email: support@revdesk.com
servers:
  - url: https://api.revdesk.com
security:
  - bearerAuth: []
tags:
  - name: Phone Numbers
  - name: Caller IDs
  - name: Enterprise Registration
  - name: Branded Calling
  - name: Calls
  - name: SMS
  - name: WebRTC
  - name: Reputation
  - name: Usage
  - name: Account
  - name: Agents
  - name: Documents
  - name: Sub-entities
paths:
  /v1/caller-trust/enterprise/{id}/generate-loa:
    post:
      tags:
        - Enterprise Registration
      summary: Generate LOA PDF for hand-signing (by ID)
      description: >-
        Generates a Letter of Authorization PDF pre-filled with enterprise data
        and a blank hand-signature line. Enterprise must have been submitted to
        the carrier first (has carrier_enterprise_id). Addresses a specific
        registration by ID.
      operationId: v1_caller_trust_enterprise_id_generate_loa_post
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
        - name: Idempotency-Key
          in: header
          required: false
          description: >-
            UUID — when present, deduplicates repeat submissions. See
            /api-reference/idempotency.
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $schema: http://json-schema.org/draft-07/schema#
              type: object
              properties:
                signer_full_name:
                  type: string
                  minLength: 2
                  maxLength: 255
                signer_email:
                  type: string
                  format: email
                  pattern: >-
                    ^(?!\.)(?!.*\.\.)([A-Za-z0-9_'+\-\.]*)[A-Za-z0-9_+-]@([A-Za-z0-9][A-Za-z0-9\-]*\.)+[A-Za-z]{2,}$
                signer_title:
                  type: string
                  minLength: 1
                  maxLength: 255
              required:
                - signer_full_name
                - signer_email
                - signer_title
              additionalProperties: false
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                $schema: http://json-schema.org/draft-07/schema#
                type: object
                properties:
                  data:
                    type: object
                    properties:
                      pdf_base64:
                        type: string
                      filename:
                        type: string
                    required:
                      - pdf_base64
                      - filename
                    additionalProperties: false
                required:
                  - data
                additionalProperties: false
        '400':
          description: Validation error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '403':
          description: Forbidden
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '404':
          description: Not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '409':
          description: Conflict (incl. idempotency conflicts)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '429':
          description: Rate limited
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
components:
  schemas:
    ErrorEnvelope:
      type: object
      properties:
        error:
          type: object
          required:
            - code
            - message
          properties:
            code:
              type: string
            message:
              type: string
            fields:
              type: object
              additionalProperties:
                type: string
            doc_url:
              type: string
              format: uri
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer

````