public void close() throws DocumentException, IOException {
if (!hasSignature) {
stamper.close(moreInfo);
return;
}
sigApp.preClose();
PdfSigGenericPKCS sig = sigApp.getSigStandard();
PdfLiteral lit = (PdfLiteral) sig.get(PdfName.CONTENTS);
int totalBuf = (lit.getPosLength() - 2) / 2;
byte buf[] = new byte[8192];
int n;
InputStream inp = sigApp.getRangeStream();
try {
while ((n = inp.read(buf)) > 0) {
sig.getSigner().update(buf, 0, n);
}
} catch (SignatureException se) {
throw new ExceptionConverter(se);
}
buf = new byte[totalBuf];
byte[] bsig = sig.getSignerContents();
System.arraycopy(bsig, 0, buf, 0, bsig.length);
PdfString str = new PdfString(buf);
str.setHexWriting(true);
PdfDictionary dic = new PdfDictionary();
dic.put(PdfName.CONTENTS, str);
sigApp.close(dic);
stamper.reader.close();
}
public void invokeOperator(PdfLiteral operator, ArrayList<PdfObject> operands) {
ContentOperator op = operators.get(operator.toString());
if (op == null) {
return;
}
op.invoke(this, operator, operands);
}
