---
title: "SignatureCertificationLevel"
canonical_url: "https://www.nutrient.io/api/python/enums/signature-certification-level/"
md_url: "https://www.nutrient.io/api/python/enums/signature-certification-level.md"
last_updated: "2026-09-02T09:34:35.870Z"
description: "Specifies the certification (DocMDP) level of a signature. A certifying signature must be the first signature applied to a document and declares which subseque…"
---

Specifies the certification (DocMDP) level of a signature. A certifying signature must be the first signature applied to a document and declares which subsequent changes are permitted.

```python

from nutrient_sdk import SignatureCertificationLevel

```

## Values

| Name                                                       | Value | Description                                                                         |
| ---------------------------------------------------------- | ----- | ----------------------------------------------------------------------------------- |
| `SignatureCertificationLevel.NOT_CERTIFIED`                | `0`   | Not a certifying signature — an ordinary approval signature. This is the default.   |
| `SignatureCertificationLevel.NO_CHANGES`                   | `1`   | No changes are permitted after certification; any change invalidates the signature. |
| `SignatureCertificationLevel.FORM_FILLING`                 | `2`   | Only form fill-in and signing are permitted after certification.                    |
| `SignatureCertificationLevel.FORM_FILLING_AND_ANNOTATIONS` | `3`   | Form fill-in, signing, and annotation changes are permitted after certification.    |

## Usage Example

```python

from nutrient_sdk import SignatureCertificationLevel

# Access enum values

value = SignatureCertificationLevel.NOT_CERTIFIED
print(f"Value: {value}")  # Output: Value: SignatureCertificationLevel.NOT_CERTIFIED

print(f"Integer value: {value.value}")  # Output: Integer value: 0

```

---

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