com.spire.pdf.interactive.digitalsignatures
Class PdfMDPSignatureMaker

java.lang.Object
  com.spire.pdf.interactive.digitalsignatures.PdfSignatureMaker
      com.spire.pdf.interactive.digitalsignatures.PdfMDPSignatureMaker

public class PdfMDPSignatureMaker
extends PdfSignatureMaker

Pdf MDP (modification detection and prevention) signature maker. A document can contain only one MDP signature, it must be the first signed in the document. It enables the author to specify what changes are permitted to be made the document and what changes invalidate the author’s signature.

Field Summary

static int	Level1Permissions No changes to the document are permitted; any change to the document invalidates the signature.
static int	Level2Permissions Permitted changes are filling in forms, instantiating page templates, and signing; other changes invalidate the signature.
static int	Level3Permissions Permitted changes are the same as for 2, as well as annotation creation, deletion, and modification; other changes invalidate the signature

Constructor Summary

PdfMDPSignatureMaker(PdfDocument document, PdfCertificate certificate)
Initialize a new instance.

PdfMDPSignatureMaker(PdfDocument document, PdfCertificate certificate, int permissions)
Initialize a new instance.

Method Summary

Methods inherited from class com.spire.pdf.interactive.digitalsignatures.PdfSignatureMaker

getSignature, makeSignature, makeSignature, makeSignature, makeSignature, setAcro6Layers

Field Detail

Level1Permissions

public static final int Level1Permissions

No changes to the document are permitted; any change to the document invalidates the signature.

See Also:

Constant Field Values

Level2Permissions

public static final int Level2Permissions

Permitted changes are filling in forms, instantiating page templates, and signing; other changes invalidate the signature.

See Also:

Constant Field Values

Level3Permissions

public static final int Level3Permissions

Permitted changes are the same as for 2, as well as annotation creation, deletion, and modification; other changes invalidate the signature

See Also:

Constant Field Values

Constructor Detail

PdfMDPSignatureMaker

public PdfMDPSignatureMaker(PdfDocument document,
                            PdfCertificate certificate)

Initialize a new instance.

Parameters:

document - The pdf document object.

certificate - The X.509 certificate.

PdfMDPSignatureMaker

public PdfMDPSignatureMaker(PdfDocument document,
                            PdfCertificate certificate,
                            int permissions)

Initialize a new instance.

Parameters:

document - The pdf document object.

certificate - The X.509 certificate.

permissions - The access permissions granted for this document. Validate values: PdfMDPSignatureMaker.Level1Permissions/PdfMDPSignatureMaker.Level2Permissions/PdfMDPSignatureMaker.Level3Permissions