Hi,
We're using iText 1.4.8 to watermark a PDF which is a result of multiple
conversion & mergin with xDocs package from Cambridge Docs. I'm aware of
one output document so far that generates the following error when calling
stamp.close() in the method below:
public static void addWatermark (PurchaseOrder po, File pdfFile, File output)
throws IOException
{
...
...
FileOutputStream fos = null;
if(output != null){
fos = new FileOutputStream(output);
}else{
fos = new FileOutputStream(pdfFile);
}
PdfReader reader = new PdfReader(collectedBytes.get(i));
PdfStamper stamp = new PdfStamper(reader, fos);
for (int j = 1; j <= reader.getNumberOfPages(); j++) {
addWatermarkInDocument(
stamp.getUnderContent(j),
locale.Sil("resource.ordering", KEY_WATERMARK,
po.getOrderID()));
}
stamp.setFormFlattening(true);
stamp.close(); <---
Full stack trace
Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /*
Style Definitions */ table.MsoNormalTable{mso-style-name:"Table
Normal";mso-tstyle-rowband-size:0;mso-tstyle-colband-size:0;mso-style-noshow:yes;mso-style-priority:99;mso-style-qformat:yes;mso-style-parent:"";mso-padding-alt:0in
5.4pt 0in
5.4pt;mso-para-margin:0in;mso-para-margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:11.0pt;font-family:"Calibri","sans-serif";mso-ascii-font-family:Calibri;mso-ascii-theme-font:minor-latin;mso-fareast-font-family:"Times
New
Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times
New Roman";mso-bidi-theme-font:minor-bidi;}
java.lang.NullPointerException
at
com.lowagie.text.pdf.StandardDecryption.finish(StandardDecryption.java:105)
at
com.lowagie.text.pdf.PdfEncryption.decryptByteArray(PdfEncryption.java:429)
at com.lowagie.text.pdf.PdfReader.getStreamBytesRaw(PdfReader.java:1980)
at com.lowagie.text.pdf.PdfReader.getStreamBytesRaw(PdfReader.java:1996)
at com.lowagie.text.pdf.PRStream.toPdf(PRStream.java:176)
at
com.lowagie.text.pdf.PdfIndirectObject.writeTo(PdfIndirectObject.java:167)
at com.lowagie.text.pdf.PdfWriter$PdfBody.add(PdfWriter.java:370)
at com.lowagie.text.pdf.PdfWriter.addToBody(PdfWriter.java:2053)
at com.lowagie.text.pdf.PdfStamperImp.close(PdfStamperImp.java:225)
at com.lowagie.text.pdf.PdfStamper.close(PdfStamper.java:172)
at
config.cust.ordering.PurchaseOrderFormatter.addWatermark(PurchaseOrderFormatter.java:332)
at
config.cust.ordering.PurchaseOrderFormatter.format(PurchaseOrderFormatter.java:264)
I'm not sending the PDF to the mailing list directly because it contains some
sensible data.
Is this perhaps a known issue?
I suspect there might be an illegal construct in the source PDF but the Adobe
reader has no issue reading the file. Would it be hard to trace the problematic
construct down?
Thanks,
Radek------------------------------------------------------------------------------
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