iaik.pdf.itext

Class PdfSignatureDetailsItext

java.lang.Object

iaik.pdf.itext.PdfSignatureDetailsItext

All Implemented Interfaces:

PdfSignatureDetails

Direct Known Subclasses:

ApprovalSignatureItext, DocumentTimestampItext

public abstract class PdfSignatureDetailsItext
extends java.lang.Object
implements PdfSignatureDetails

Implementation of the PdfSignatureDetails interface to use iText for extracting and parsing PDF signatures.

Method Summary

Modifier and Type	Method and Description
java.lang.String	getName() Returns the name of this signature.
void	getRevision(java.io.OutputStream pdfOutStream) Write only the signed parts of this document signed by this signature and the signature itself to the given output stream.
void	getRevision(java.io.OutputStream pdfOutStream, int offset) Write only the signed parts of this document signed by this signature and the signature itself to the given output stream starting at index offset.
void	getRevision(java.lang.String filename) Save only the signed parts of this document signed by this signature and the signature itself to the given path and filename.
java.util.Calendar	getSignatureDictionaryDate() Returns the signing date, as set in the PDF signature dictionary (with dictionary key name "M").
java.lang.String	getSubfilter() Returns the subfilter of this signature.
boolean	isModified() Check whether the document has been modified after the signature was applied by verifying that the document ends after the last byte of the signed version.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface iaik.pdf.signature.PdfSignatureDetails

getSigningTime

Method Detail

getName

public java.lang.String getName()

Description copied from interface: PdfSignatureDetails

Returns the name of this signature.

Specified by:

getName in interface PdfSignatureDetails

Returns:

the signature's name

getSubfilter

public java.lang.String getSubfilter()

Description copied from interface: PdfSignatureDetails

Returns the subfilter of this signature. Typical subfilters are "adbe.pkcs7.detached" for PAdES-basic signatures, "ETSI.CAdES.detached" for PAdES-BES signatures and "ETSI.RFC3161" for PAdES LTV Document Timestamps.

Specified by:

getSubfilter in interface PdfSignatureDetails

Returns:

the signature's subfilter

isModified

public boolean isModified()

Description copied from interface: PdfSignatureDetails

Check whether the document has been modified after the signature was applied by verifying that the document ends after the last byte of the signed version.

Specified by:

isModified in interface PdfSignatureDetails

Returns:

true, if the document has been modified

getRevision

public void getRevision(java.lang.String filename)
                 throws java.io.IOException

Description copied from interface: PdfSignatureDetails

Save only the signed parts of this document signed by this signature and the signature itself to the given path and filename.

Specified by:

getRevision in interface PdfSignatureDetails

Parameters:

filename - The path and file name where to save the signed version

Throws:

java.io.IOException - if the signed version can't be extracted or written

getRevision

public void getRevision(java.io.OutputStream pdfOutStream)
                 throws java.io.IOException

Description copied from interface: PdfSignatureDetails

Write only the signed parts of this document signed by this signature and the signature itself to the given output stream.

Specified by:

getRevision in interface PdfSignatureDetails

Parameters:

pdfOutStream - the output stream to write the signed version to

Throws:

java.io.IOException - if the signed version can't be extracted or written

getRevision

public void getRevision(java.io.OutputStream pdfOutStream,
                        int offset)
                 throws java.io.IOException

Description copied from interface: PdfSignatureDetails

Write only the signed parts of this document signed by this signature and the signature itself to the given output stream starting at index offset.

Specified by:

getRevision in interface PdfSignatureDetails

Parameters:

pdfOutStream - the output stream to write the signed version to

offset - offset where to start writing the signed version

Throws:

java.io.IOException - if the signed version can't be extracted or written

getSignatureDictionaryDate

public java.util.Calendar getSignatureDictionaryDate()

Description copied from interface: PdfSignatureDetails

Returns the signing date, as set in the PDF signature dictionary (with dictionary key name "M"). Does not return the date embedded in the CMS signature.

Specified by:

getSignatureDictionaryDate in interface PdfSignatureDetails

Returns:

the signing date specified in the PDF signature dictionary