curl --request POST \
  --url https://vantage-us.abbyy.com/api/publicapi/v1/api/publicapi/v1/transactions/{transactionId}/documents \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json-patch+json' \
  --data '{
  "index": 123,
  "imageProcessingOptions": {
    "autoCrop": "Default",
    "autoOrientation": "Default"
  }
}'

{
  "documentId": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}