Package org.apache.pdfbox.examples.signature

Class CreateVisibleSignature2

java.lang.Object

org.apache.pdfbox.examples.signature.CreateSignatureBase

org.apache.pdfbox.examples.signature.CreateVisibleSignature2

All Implemented Interfaces:

SignatureInterface

public class CreateVisibleSignature2
extends CreateSignatureBase

This is a second example for visual signing a pdf. It doesn't use the "design pattern" influenced PDVisibleSignDesigner, and doesn't create its complex multilevel forms described in the Adobe document Digital Signature Appearances, because this isn't required by the PDF specification. See the discussion in December 2017 in PDFBOX-3198.

Field Summary

Fields

Modifier and Type	Field	Description
private File	imageFile
private boolean	lateExternalSigning
private SignatureOptions	signatureOptions

Constructor Summary

Constructors

Constructor	Description
CreateVisibleSignature2(KeyStore keystore, char[] pin)	Initialize the signature creator with a keystore (pkcs12) and pin that should be used for the signature.

Method Summary

Modifier and Type	Method	Description
private PDRectangle	createSignatureRectangle(PDDocument doc, Rectangle2D humanRect)
private InputStream	createVisualSignatureTemplate(PDDocument srcDoc, int pageNum, PDRectangle rect, PDSignature signature)
private PDSignature	findExistingSignature(PDAcroForm acroForm, String sigFieldName)
File	getImageFile()
boolean	isLateExternalSigning()
static void	main(String[] args)	Arguments are [0] key store [1] pin [2] document that will be signed [3] image of visible signature
void	setImageFile(File imageFile)
void	setLateExternalSigning(boolean lateExternalSigning)	Set late external signing.
void	signPDF(File inputFile, File signedFile, Rectangle2D humanRect, String tsaUrl)	Sign pdf file and create new file that ends with "_signed.pdf".
void	signPDF(File inputFile, File signedFile, Rectangle2D humanRect, String tsaUrl, String signatureFieldName)	Sign pdf file and create new file that ends with "_signed.pdf".
private static void	usage()	This will print the usage for this program.

Methods inherited from class org.apache.pdfbox.examples.signature.CreateSignatureBase

getCertificateChain, isExternalSigning, setCertificateChain, setExternalSigning, setPrivateKey, setTsaUrl, sign

Methods inherited from class java.lang.Object

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

Field Details

signatureOptions

private SignatureOptions signatureOptions

lateExternalSigning

private boolean lateExternalSigning

imageFile

private File imageFile

Constructor Details

CreateVisibleSignature2

public CreateVisibleSignature2(KeyStore keystore,
 char[] pin)
                        throws KeyStoreException,
UnrecoverableKeyException,
NoSuchAlgorithmException,
IOException,
CertificateException

Initialize the signature creator with a keystore (pkcs12) and pin that should be used for the signature.

Parameters:

keystore - is a pkcs12 keystore.

pin - is the pin for the keystore / private key

Throws:

KeyStoreException - if the keystore has not been initialized (loaded)

NoSuchAlgorithmException - if the algorithm for recovering the key cannot be found

UnrecoverableKeyException - if the given password is wrong

CertificateException - if the certificate is not valid as signing time

IOException - if no certificate could be found

Method Details

getImageFile

public File getImageFile()

setImageFile

public void setImageFile(File imageFile)

isLateExternalSigning

public boolean isLateExternalSigning()

setLateExternalSigning

public void setLateExternalSigning(boolean lateExternalSigning)

Set late external signing. Enable this if you want to activate the demo code where the signature is kept and added in an extra step without using PDFBox methods. This is disabled by default.

Parameters:

lateExternalSigning -

signPDF

public void signPDF(File inputFile,
 File signedFile,
 Rectangle2D humanRect,
 String tsaUrl)
             throws IOException

Sign pdf file and create new file that ends with "_signed.pdf".

Parameters:

inputFile - The source pdf document file.

signedFile - The file to be signed.

humanRect - rectangle from a human viewpoint (coordinates start at top left)

tsaUrl - optional TSA url

Throws:

IOException

signPDF

public void signPDF(File inputFile,
 File signedFile,
 Rectangle2D humanRect,
 String tsaUrl,
 String signatureFieldName)
             throws IOException

Sign pdf file and create new file that ends with "_signed.pdf".

Parameters:

inputFile - The source pdf document file.

signedFile - The file to be signed.

humanRect - rectangle from a human viewpoint (coordinates start at top left)

tsaUrl - optional TSA url

signatureFieldName - optional name of an existing (unsigned) signature field

Throws:

IOException

createSignatureRectangle

private PDRectangle createSignatureRectangle(PDDocument doc,
 Rectangle2D humanRect)

createVisualSignatureTemplate

private InputStream createVisualSignatureTemplate(PDDocument srcDoc,
 int pageNum,
 PDRectangle rect,
 PDSignature signature)
                                           throws IOException

Throws:

IOException

findExistingSignature

private PDSignature findExistingSignature(PDAcroForm acroForm,
 String sigFieldName)

main

public static void main(String[] args)
                 throws KeyStoreException,
CertificateException,
IOException,
NoSuchAlgorithmException,
UnrecoverableKeyException

Arguments are [0] key store [1] pin [2] document that will be signed [3] image of visible signature

Parameters:

args -

Throws:

KeyStoreException

CertificateException

IOException

NoSuchAlgorithmException

UnrecoverableKeyException

usage

private static void usage()

This will print the usage for this program.