/** Does the actual document manipulation to encrypt it.
* @throws DocumentException on error
* @throws IOException on error
*/
protected void go()
{
body = new PdfBody(HEADER.Length, this, true);
os.Write(HEADER, 0, HEADER.Length);
PdfObject[] xb = reader.xrefObj;
myXref = new int[xb.Length];
int idx = 1;
for (int k = 1; k < xb.Length; ++k)
{
if (xb[k] != null)
{
myXref[k] = idx++;
}
}
file.reOpen();
for (int k = 1; k < xb.Length; ++k)
{
if (xb[k] != null)
{
addToBody(xb[k]);
}
}
file.close();
PdfIndirectReference encryption = null;
PdfLiteral fileID = null;
if (crypto != null)
{
PdfIndirectObject encryptionObject = body.Add(crypto.EncryptionDictionary);
encryptionObject.writeTo(os);
encryption = encryptionObject.IndirectReference;
fileID = crypto.FileID;
}
// write the cross-reference table of the body
os.Write(body.CrossReferenceTable, 0, body.CrossReferenceTable.Length);
PRIndirectReference iRoot = (PRIndirectReference)reader.trailer.get(PdfName.ROOT);
PdfIndirectReference root = new PdfIndirectReference(0, myXref[iRoot.Number]);
PRIndirectReference iInfo = (PRIndirectReference)reader.trailer.get(PdfName.INFO);
PdfIndirectReference info = null;
if (iInfo != null)
{
info = new PdfIndirectReference(0, myXref[iInfo.Number]);
}
PdfTrailer trailer = new PdfTrailer(body.Size,
body.Offset,
root,
info,
encryption,
fileID);
byte[] tmp = trailer.toPdf(this);
os.Write(tmp, 0, tmp.Length);
os.Close();
}
