Class PdfSignatureInvalidationException

Namespace

LMKit.Exceptions

Assembly

LM-Kit.NET.dll

Thrown when an operation would rewrite a digitally signed PDF, which invalidates its signatures, and the caller did not consent to that.

public sealed class PdfSignatureInvalidationException : PdfDocumentException, ISerializable

Inheritance

object

Exception

PdfDocumentException

PdfSignatureInvalidationException

Implements

ISerializable

Inherited Members

PdfDocumentException.ErrorCode

Exception.GetBaseException()

Exception.GetObjectData(SerializationInfo, StreamingContext)

Exception.GetType()

Exception.ToString()

Exception.Data

Exception.HelpLink

Exception.HResult

Exception.InnerException

Exception.Message

Exception.Source

Exception.StackTrace

Exception.TargetSite

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.ReferenceEquals(object, object)

Remarks

A full rewrite changes the bytes every signature's digest was computed over, so the signatures of the output can never verify again. Operations that write PDFs expose an explicit opt-in (for example PdfRedactionOptions.AllowSignatureInvalidation, or the PdfSaveOptions.AllowSignatureInvalidation flag on raw saves); pass it to proceed deliberately.

Properties

SignatureCount

Gets the number of digital signatures the document carried when the operation was refused.