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PDFSignature Class

Summary

Contains information about a single PDF digital signature.

Syntax

C#
VB
Java
C++
[SerializableAttribute()] 
public class PDFSignature 

<SerializableAttribute()> 
Public Class PDFSignature  

public class PDFSignature 

[SerializableAttribute()] 
public ref class PDFSignature  

Remarks

The PDFSignature class contains the properties of a PDF digital signature. It contains the following members:

Member Description
Bounds

The location and size of the signature on the page.

PageNumber

The 1-based number of the page that owns this signature.

CanValidate

Indicates whether this signature can be validated.

State

Signature's state (valid, expired, etc.).

Version

Signature version.

CertificateInfo

Dictionary of certificate information about this signature.

PublicKeyBits

Number of bits in this signature's public key.

PublicKeyType

Public key type of this signature.

KeyUsage

Key usage of this signature.

ValidFrom

Starting date of the time period when the signature is valid.

ValidTo

Ending date of the time period when the signature is valid.

LEADTOOLS supports loading all digital signatures from a PDF file. Due to the nature and complexity of PDF digital signatures (especially the prevalent use of PDF files that contain many custom and user-defined signatures), LEADTOOLS reads the data as is and sets it in a PDFSignature without any modification. Refer to the PDF Forms Demo for an example on how to parse and verify the signatures in a PDF file.

Requirements

Target Platforms

Help Version 20.0.2018.6.20
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