ClassSignature
Digital signature API for signing and validating PDF content, enabling integrity checks and signer attribution.
Definition
Namespace:Telerik.Windows.Documents.Fixed.Model.DigitalSignatures
Assembly:Telerik.Windows.Documents.Fixed.dll
Syntax:
public class SignatureInheritance: objectSignature
Constructors
Signature(IExternalSigner)
Create a signature instance configured for external signing.
Declaration
public Signature(IExternalSigner signDataHandler)Parameters
signDataHandler
The external signing handler that performs the actual signing operation.
Signature(X509Certificate2)
Create a signature instance bound to an X.509 certificate used for signing.
Declaration
public Signature(X509Certificate2 certificate)Parameters
certificate
The X.509 certificate containing the private key used for digital signing.
Properties
Properties
Metadata and configuration for the signature (signer info, time, location, contents, and byte ranges).
Declaration
public SignatureDataProperties Properties { get; set; }Property Value
The signature data properties that define the signature's characteristics and metadata.
Settings
Signing configuration applied when producing (or guiding external production of) the CMS / PKCS#7 signature.
Declaration
public SignatureSettings Settings { get; }Property Value
Remarks
Values contained here (e.g. selected digest algorithm) are not written directly as PDF dictionary keys;
they influence how the CMS envelope is built for new signatures. Changing settings after the signature
bytes (/Contents) have been generated has no effect on that existing signature.
SupportsValidation
Indicates whether this instance supports validation (imported signatures only).
Declaration
public bool SupportsValidation { get; }Property Value
true if the signature was imported from an existing document and can be validated; false for newly created signatures.
Methods
TryValidate(SignatureValidationProperties, out SignatureValidationResult)
Validate the signature using the provided properties and return whether validation succeeded.
Declaration
public bool TryValidate(SignatureValidationProperties validationProperties, out SignatureValidationResult validationResult)Parameters
validationProperties
The validation properties.
validationResult
When this method returns, contains the signature validation result.
Returns
Return true on success; otherwise false.
TryValidate(out SignatureValidationResult)
Validate the signature using default settings and return whether validation succeeded.
Declaration
public bool TryValidate(out SignatureValidationResult validationResult)Parameters
validationResult
When this method returns, contains the signature validation result.
Returns
Return true on success; otherwise false.
Validate()
Validate the signature using default validation properties and return the result.
Declaration
public SignatureValidationResult Validate()Returns
An instance of the SignatureValidationResult class.
Validate(SignatureValidationProperties)
Validate the signature using the specified properties and return the validation result.
Declaration
public SignatureValidationResult Validate(SignatureValidationProperties validationProperties)Parameters
validationProperties
The validation properties.
Returns
The validation result indicating whether the signature is valid.