# Get Document

Get Document by documentId and return binary file.

Endpoint: POST /rest/v1/documents/get
Version: v1.0.0
Security: 

## Header parameters:

  - `x-software-id` (string)
    External software identifier to track which ERP has fetched this document.

## Request fields (application/json):

  - `documentId` (string)
    The unique identifier of the invoice document.
    Example: "6787a98e15306d37eed688a8"

  - `companyVatNumber` (string, required)
    The VAT number of the company.
    Example: "HR12345678910"