Example usage for org.apache.pdfbox.pdmodel PDDocument addSignature

Introduction

In this page you can find the example usage for org.apache.pdfbox.pdmodel PDDocument addSignature.

Prototype

public void addSignature(PDSignature sigObject, SignatureInterface signatureInterface) throws IOException 

Source Link

Document

Add a signature to be created using the instance of given interface.

Usage

From source file:CreateSignature.java

License:Apache License

public void signDetached(PDDocument document, OutputStream output, TSAClient tsaClient) throws IOException {
    setTsaClient(tsaClient);/*from  www . ja va 2 s . c o m*/

    // create signature dictionary
    PDSignature signature = new PDSignature();
    signature.setFilter(PDSignature.FILTER_ADOBE_PPKLITE);
    signature.setSubFilter(PDSignature.SUBFILTER_ADBE_PKCS7_DETACHED);
    signature.setName("Example User");
    signature.setLocation("Los Angeles, CA");
    signature.setReason("Testing");
    // TODO extract the above details from the signing certificate? Reason as a parameter?

    // the signing date, needed for valid signature
    signature.setSignDate(Calendar.getInstance());

    // register signature dictionary and sign interface
    document.addSignature(signature, this);

    // write incremental (only for signing purpose)
    document.saveIncremental(output);
}

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From source file:com.aaasec.sigserv.csspsupport.pdfbox.CreateSignature.java

License:EUPL

/**
 * Signs the given pdf file./*from   w  ww.  ja  v  a 2s . c o m*/
 */
public File signPDF() throws IOException, COSVisitorException, SignatureException {
    byte[] buffer = new byte[8 * 1024];
    File document = new File(model.getOriginalLoc());
    if (document == null || !document.exists()) {
        throw new RuntimeException("Document for signing does not exist");
    }

    File outputDocument = new File(model.getSignedLoc());
    FileInputStream fis = new FileInputStream(document);
    FileOutputStream fos = new FileOutputStream(outputDocument);

    int c;
    while ((c = fis.read(buffer)) != -1) {
        fos.write(buffer, 0, c);
    }
    fis.close();
    fis = new FileInputStream(outputDocument);

    // load document
    PDDocument doc = PDDocument.load(document);

    // create signature dictionary
    PDSignature signature = new PDSignature();
    signature.setFilter(PDSignature.FILTER_ADOBE_PPKLITE); // default filter
    // subfilter for basic and PAdES Part 2 signatures
    signature.setSubFilter(PDSignature.SUBFILTER_ADBE_PKCS7_DETACHED);
    if (model.getSignerName() != null) {
        signature.setName(model.getSignerName());
    }
    if (model.getSignerLocation() != null) {
        signature.setLocation(model.getSignerLocation());
    }
    if (model.getReasonForSigning() != null) {
        signature.setReason(model.getReasonForSigning());
    }

    // the signing date, needed for valid signature
    Calendar sigDate = Calendar.getInstance();
    sigDate.setTime(new Date(model.getSigningAndIdTime()));
    signature.setSignDate(sigDate);

    // register signature dictionary and sign interface
    if (model.getOptions() == null) {
        doc.addSignature(signature, this);
    } else {
        doc.addSignature(signature, this, model.getOptions());
    }

    // write incremental (only for signing purpose)
    PdfBoxSigUtil.saveIncremental(doc, fis, fos, model.getSigningAndIdTime());

    return outputDocument;
}

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From source file:eu.europa.ec.markt.dss.signature.pdf.pdfbox.PdfBoxSignatureService.java

License:Open Source License

private byte[] signDocumentAndReturnDigest(final SignatureParameters parameters, final byte[] signatureBytes,
        final File signedFile, final FileOutputStream fileOutputStream, final PDDocument pdDocument,
        final PDSignature pdSignature, final DigestAlgorithm digestAlgorithm) throws DSSException {

    try {/*from  w  w w.ja v  a  2s . c om*/

        final MessageDigest digest = DSSUtils.getMessageDigest(digestAlgorithm);
        // register signature dictionary and sign interface
        SignatureInterface signatureInterface = new SignatureInterface() {

            @Override
            public byte[] sign(InputStream content) throws SignatureException, IOException {

                byte[] b = new byte[4096];
                int count;
                while ((count = content.read(b)) > 0) {
                    digest.update(b, 0, count);
                }
                return signatureBytes;
            }
        };
        pdDocument.addSignature(pdSignature, signatureInterface);

        saveDocumentIncrementally(parameters, signedFile, fileOutputStream, pdDocument);
        final byte[] digestValue = digest.digest();
        if (LOG.isDebugEnabled()) {
            LOG.debug("Digest to be signed: " + DSSUtils.encodeHexString(digestValue));
        }
        fileOutputStream.close();
        return digestValue;
    } catch (NoSuchAlgorithmException e) {
        throw new DSSException(e);
    } catch (IOException e) {
        throw new DSSException(e);
    } catch (SignatureException e) {
        throw new DSSException(e);
    }
}

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