Document Ingestion API can be used to detect signatures in documents in two ways:

  1. Get the bounding boxes of detected signatures in the document.
  2. Get the context of the signatures detected in the document.

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Getting Bounding Boxes of Signatures

Bounding boxes of signatures can be detected by setting detectSignature to true in the settings JSON object when calling the parse API.

{
    "settings": {
        "detectSignature": true
    }
}

​
Response

The bounding boxes of signatures are present in the Document object returned by the parse API. This is a JSON object which contains all the detected objects in the document such as tables, figures, charts, signatures, etc.

      "page_fragments": [
        {
          "bbox": {
            "x1": 97,
            "x2": 212,
            "y1": 621,
            "y2": 661
          },
          "content": {
            "content": "Signature detected"
          },
          "fragment_type": "signature",
          "reading_order": -1
        },
      ]

​
Getting Context of Signatures

Context of signatures can be detected by using the Structured Extraction API. You can specify a schema that captures the context, such as has the signature been signed by the signee, name of the personal signing, etc.

A sample schema for signature context is shown below:

{
  "type": "object",
  "properties": {
    "signatures": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "has_signed": {
            "type": "string",
            "description": "Has the signee signed the signature"
          },
          "name_signee": {
            "type": "string",
            "description": "Name of the signee"
          }
        }
      },
      "description": "Signatures detected in the page "
    }
  },
  "title": "signatures"
}