---
title: "SignatureLevel"
canonical_url: "https://www.nutrient.io/api/python/enums/signature-level/"
md_url: "https://www.nutrient.io/api/python/enums/signature-level.md"
last_updated: "2026-09-02T09:34:35.870Z"
description: "Specifies the PAdES baseline level to produce when applying a digital signature."
---

Specifies the PAdES baseline level to produce when applying a digital signature.

```python

from nutrient_sdk import SignatureLevel

```

## Values

| Name                                | Value | Description                                                                                                                                                                                                          |
| ----------------------------------- | ----- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `SignatureLevel.PADES_BASELINE_B`   | `0`   | PAdES baseline B (B-B): a basic signature. This is the default.                                                                                                                                                      |
| `SignatureLevel.PADES_BASELINE_T`   | `1`   | PAdES baseline T (B-T): a basic signature plus a trusted timestamp. Requires a timestamp configuration to be provided.                                                                                               |
| `SignatureLevel.PADES_BASELINE_LT`  | `2`   | PAdES baseline LT (B-LT): long-term validation material — certificates and revocation information — is embedded in the document. Requires a timestamp configuration and network access to reach revocation services. |
| `SignatureLevel.PADES_BASELINE_LTA` | `3`   | PAdES baseline LTA (B-LTA): long-term validation material plus a document timestamp that protects it. Requires a timestamp configuration and network access.                                                         |

## Usage Example

```python

from nutrient_sdk import SignatureLevel

# Access enum values

value = SignatureLevel.PADES_BASELINE_B
print(f"Value: {value}")  # Output: Value: SignatureLevel.PADES_BASELINE_B

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

```

---

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