Hi all,
I have a class that concatenates files, and signs the resulting PDF. The
concatenation seems to work OK, but when I try to sign the PDF, i get a
OutOfMemoryError.
It's true that this PDF has 97 pages (33 Mbytes) but i think this
shouldn't be a problem to iText, so the problem must be in my code, but
i can't see it.
Can anyone help me?
/** --------------- Concatenation ----------------- */
private void concatPDF(ArrayList ficheros, String pathDest, String
nameDest) throws IOException, DocumentException {
int pageOffset = 0;
ArrayList master = new ArrayList();
int f = 0;
Document document = null;
PdfCopy writer = null;
FileOutputStream out = null;
while (f < ficheros.size()) {
PdfReader reader = new PdfReader(PATH_FILES_SINGLEPDF +
File.separator + ficheros.get(f));
reader.consolidateNamedDestinations();
int n = reader.getNumberOfPages();
pageOffset += n;
if (f == 0) {
// step 1: creation of a document-object
document = new Document(reader.getPageSizeWithRotation(1));
// step 2: we create a writer that listens to the document
out = new FileOutputStream(pathDest + File.separator + nameDest);
writer = new PdfCopy(document, out);
// step 3: we open the document
document.open();
}
PdfImportedPage page;
for (int i = 0; i < n; ) {
++i;
page = writer.getImportedPage(reader, i);
writer.addPage(page);
}
writer.freeReader(reader);
f++;
}
if (master.size() > 0) {
writer.setOutlines(master);
}
// step 5: we close the document
document.close();
writer.close();
if (out!=null) {
out.close();
}
}
/** --------------- Signing----------------- */
private void signPDF(String src, String dst) throws IOException,
DocumentException, KeyStoreException, NoSuchAlgorithmException,
CertificateException, UnrecoverableKeyException {
FileOutputStream out = new FileOutputStream(dst);
PdfReader reader = new PdfReader(src);
PdfStamper stamp = PdfStamper.createSignature(reader, out, '\0');
KeyStore ks = KeyStore.getInstance("pkcs12");
ks.load(new FileInputStream("certificado.pfx"), "XXXX".toCharArray());
String alias = (String)ks.aliases().nextElement();
PrivateKey key = (PrivateKey)ks.getKey(alias, "XXXX".toCharArray());
Certificate[] chain = ks.getCertificateChain(alias);
PdfSignatureAppearance sap = stamper.getSignatureAppearance();
sap.setCrypto(key, chain, null, PdfSignatureAppearance.WINCER_SIGNED);
sap.setReason("Factura");
sap.setLocation("Bilbao");
sap.setSignDate(new GregorianCalendar());
stamp.close();
out.close();
}
Thanks in advance,
--
Keko
"Ezinbestekoa ez bada, ez imprimitu mezu hau edo honekin batera
doazkizun dokumentuak. Lagundu ingurumena zaintzen, denon ardura da."
"No imprima este mensaje o sus documentos adjuntos, a no ser que sea
verdaderamente necesario. Colaborar a respetar el Medio Ambiente es
responsabilidad nuestra."
"Please don't print this e-mail or its attachments, unless it is
absolutely necessary. It is our responsibility to respect the
environment."
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