Class PdfSignature

Namespace

nebulae.dotPDFium.Security

Assembly

dotPDFium.dll

Represents a digital signature in a PDF document.

public sealed class PdfSignature : PdfObject, IDisposable

Inheritance

object

PdfObject

PdfSignature

Implements

IDisposable

Inherited Members

PdfObject.Handle

PdfObject.Type

PdfObject.IsDisposed

PdfObject.GetPDFiumError()

PdfObject.Dispose()

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

object.ToString()

Methods

GetByteRange()

Gets the byte range used to compute the signature hash. This typically contains 4 integers: start offset, length before signature, offset after signature, and length after.

public IReadOnlyList<int> GetByteRange()

Returns

IReadOnlyList<int>

A list of signed byte range values, or empty if none are present.

GetContents()

Gets the raw PKCS#7 signature contents as a DER-encoded binary blob.

public byte[] GetContents()

Returns

byte[]

A byte array containing the raw signature data.

GetDocMDPPermission()

Gets the DocMDP permission level defined by this signature.

public PdfDocMDPPermission GetDocMDPPermission()

Returns

PdfDocMDPPermission

A PdfDocMDPPermission value indicating the allowed operations after signing.

GetReason()

Gets the human-readable reason string associated with the signature (if available).

public string GetReason()

Returns

string

The reason string provided by the signer, or an empty string if none.

GetSigningTime()

Gets the timestamp string associated with the signature (typically from the /M field).

public string GetSigningTime()

Returns

string

A string containing the signing time, or an empty string if unavailable.

GetSubFilter()

Gets the SubFilter string that specifies the encoding format of the signature (e.g. PKCS7, CAdES).

public string GetSubFilter()

Returns

string

The SubFilter string, or an empty string if not present.