PDFCustomDigitalSignature¶

Namespace: O2S.Components.PDF4NET.DigitalSignatures

Defines the base class for custom digital signatures.

public class PDFCustomDigitalSignature : PDFBaseDigitalSignature

Inheritance Object → PDFBaseDigitalSignature → PDFCustomDigitalSignature

Remarks

This class lets you build the entire signature object according to your rules.
Your class inherits from PDFCustomDigitalSignature and overrides the PDFCustomDigitalSignature.CreateSignature(Stream) method.

Properties¶

Certificate¶

Gets or sets the sign certificate.

public X509Certificate2 Certificate { get; set; }

Property Value

X509Certificate2
A that represents the certificate used to sign the document.

Remarks

This property is not used by PDFDocumentTimeStamp signatures.

ContactInfo¶

Gets or sets the contact information.

public string ContactInfo { get; set; }

Property Value

String
Information provided by the signer to enable a recipient to contact the signer to verify the signature.

Remarks

This property should not be set for PDFDocumentTimeStamp signatures.

CosDictionary¶

Gets the signature dictionary.

public PDFCosDictionary CosDictionary { get; }

Property Value

PDFCosDictionary
The COS signature object for setting custom values for the signature.

Location¶

Gets or sets the location.

public string Location { get; set; }

Property Value

String
The CPU host name or physical location of the signing.

Remarks

This property should not be set for PDFDocumentTimeStamp signatures.

Name¶

Gets or sets the name.

public string Name { get; set; }

Property Value

String
The name of the person or authority signing the document.

Remarks

This property should not be set for PDFDocumentTimeStamp signatures.

Reason¶

Gets or sets the sign reason.

public string Reason { get; set; }

Property Value

String
The reason for the signing.

Remarks

This property should not be set for PDFDocumentTimeStamp signatures.

SignatureDate¶

Gets or sets the sign date.

public DateTime SignatureDate { get; set; }

Property Value

DateTime
The date and time when the signature was applied.

SignatureDigestAlgorithm¶

Gets or sets the signature digest algorithm.

public PDFDigitalSignatureDigestAlgorithm SignatureDigestAlgorithm { get; set; }

Property Value

PDFDigitalSignatureDigestAlgorithm
A PDFDigitalSignatureDigestAlgorithm enum member specifying the digest algorithm used in the computation of the digital signature.

Methods¶

CreateSignature(Stream)¶

Override this method to create your own custom signature.

public Byte[] CreateSignature(Stream contentToBeSigned)

Parameters

contentToBeSigned Stream
The content of the PDF file over which the signature should be computed.

Returns

Byte[]
The full signature object.