Hi,
I am extracting the XML from an XFA form, processing it in a different
application and now would like to stuff it back into the PDF.
Unfortunately nothing I do to the data sticks.
Here is my code:
public static void main(String[] args) {
try {
if (args.length==0) {
throw new Exception("Filename not specified");
}
String filename = args[0];
File infile = new File(filename);
PdfReader reader = new PdfReader(infile.getAbsolutePath());
XfaForm xfa = new XfaForm(reader);
if (!xfa.isXfaPresent()) {
throw new Exception("isXfaPresent() returns false");
}
Document doc = xfa.getDomDocument();
File newxmlfile = new
File(changeExtension(infile.getAbsolutePath(),".new.xfa"));
if (newxmlfile.exists()) {
DocumentBuilderFactory dbf =
DocumentBuilderFactory.newInstance();
dbf.setNamespaceAware(true);
DocumentBuilder db = dbf.newDocumentBuilder();
Document newdoc = db.parse(newxmlfile);
while
(doc.getDocumentElement().getChildNodes().getLength()>0) {
doc.getDocumentElement().removeChild(doc.getDocumentElement().getChildNodes().item(0));
}
NodeList newChildren =
newdoc.getDocumentElement().getChildNodes();
for(int i=0 ; i<newChildren.getLength() ; i++ ) {
Node copy = doc.importNode(newChildren.item(i),
true);
doc.getDocumentElement().appendChild(copy);
}
PdfStamper stamper = new PdfStamper(reader,
System.out,'\0',true);
xfa.setDomDocument(doc);
xfa.setChanged(true);
XfaForm.setXfa(
xfa,
stamper.getReader(),
stamper.getWriter());
stamper.close();
} else {
throw new Exception("replacement xfa not found in \"" +
newxmlfile.getAbsolutePath() + "\"");
}
reader.close();
} catch (Exception de) {
de.printStackTrace();
}
}
The funny clear document/importnode/appendchild logic is a desperate
attempt. I also tried the much simpler xfa.setDomDocument(newdoc).
The program runs and creates a copy of the input. It is changed, the
size is not exactly the same, but any changes to the content of the xml
are lost.
I have even tried the extreme case of emptying the new xml file of
everything but the <xdp:xdp> root-element. No change.
Any idea what I am doing wrong?
Ciao, MM
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