PDFSignature Class

Summary

Contains information about a single PDF digital signature.

Syntax

C++

Java

[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.

The application must ensure that digital signatures are supported using PDFDocument.GetDigitalSignatureSupportStatus.

Requirements

Target Platforms

Reference

PDFSignature Members

Leadtools.Pdf Namespace

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Help Version 20.0.2020.4.3

Leadtools.Pdf Assembly

Introduction

Getting Started

Namespaces

Leadtools.Pdf Namespace

Assemblies