Class SignatureStatus

Represents the outcome of a PDF digital signature verification.

Inheritance

System.Object

SignatureStatus

Namespace: IronPdf.Signing.Inspection

Assembly: IronPdf.dll

Syntax

public sealed class SignatureStatus : Enum

The SignatureStatus enumeration in IronPDF reports the verdict of verifying a PDF digital signature.

Part of the IronPdf.Signing.Inspection namespace, the 4 members are Valid, ValidWithWarnings, Invalid, and Indeterminate, ordered from a clean pass through a chain-of-trust caveat to outright tampering or a missing trust anchor. Inspect VerifiedSignature.Status after calling the signature verification API.

See Verify PDF Signatures for C# inspection code.

Fields

Indeterminate

Signature validity could not be fully determined, typically due to network or timeout issues during revocation checking.

Declaration

public const SignatureStatus Indeterminate

Field Value

Type	Description
SignatureStatus

Invalid

Signature is invalid due to cryptographic failure, certificate revocation, or document tampering detected after signing.

Declaration

public const SignatureStatus Invalid

Field Value

Type	Description
SignatureStatus

Valid

Signature is cryptographically valid and the certificate chain is trusted.

Declaration

public const SignatureStatus Valid

Field Value

Type	Description
SignatureStatus

ValidWithWarnings

Signature is cryptographically valid but has non-critical issues such as a weak algorithm (SHA-1), self-signed certificate, or untrusted root CA.

Declaration

public const SignatureStatus ValidWithWarnings

Field Value

Type	Description
SignatureStatus

value__

Declaration

public int value__

Field Value

Type	Description
System.Int32