Hi,
I have experienced this with iTextSHARP 5.4.5.
The problem:
PdfStamper crashes during .Close() if xml-metadata contain a german umlaut.
I have traced that in the source code:
(XmpMetaParser.cs)
private static XmlDocument ParseXmlFromBytebuffer(ByteBuffer
buffer, ParseOptions options) {
try
{
XmlDocument doc = new XmlDocument();
doc.Load(buffer.ByteStream);
return doc;
}
In doc.Load an XmlException is thrown, but only an XmpException is catched.
To verify my assumption I inserted a catch block for XmlException which
is - as far as possible - identical to that for XmpException (see source
code below). It looks as if the metadata are copied correctly to the
target file.
I probably won't use that modification, because I'm not happy modifying
iText myself. Instead I will try to throw out the metadata by using
PdfReader/PdfWriter.
But it would be nice if the developpers could correct the problem in the
next version.
Thanks for the great iText(Sharp) software.
Peter Schwalm
...
catch (XmlException e)
{
XmlDocument doc = new XmlDocument();
// if (e.ErrorCode == XmpError.BADXML || e.ErrorCode ==
XmpError.BADSTREAM)
if (true)
{
if (options.AcceptLatin1)
{
buffer = Latin1Converter.Convert(buffer);
}
if (options.FixControlChars)
{
try
{
StreamReader streamReader = new
StreamReader(buffer.ByteStream, Encoding.GetEncoding(buffer.Encoding));
FixAsciiControlsReader fixReader = new
FixAsciiControlsReader(streamReader);
doc.Load(fixReader);
return doc;
}
catch (Exception)
{
// can normally not happen as the encoding
is provided by a util function
throw new XmpException("Unsupported
Encoding", XmpError.INTERNALFAILURE, e);
}
}
doc.Load(buffer.ByteStream);
return doc;
}
throw e;
}
catch (XmpException e)
{
XmlDocument doc = new XmlDocument();
if (e.ErrorCode == XmpError.BADXML || e.ErrorCode ==
XmpError.BADSTREAM)
{
....
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