https://itextsharp.svn.sourceforge.net/svnroot/itextsharp/trunk/src/core
> -----Original Message-----
> From: subrah [mailto:subnibh...@gmail.com]
> Sent: Tuesday, November 17, 2009 4:32 PM
> To: itext-questions@lists.sourceforge.net
> Subject: Re: [iText-questions] Root Object is invalid or
> missing after PDF is manipulated with iTextSharp
>
>
> Hi Paulo,
>
> Thank you. Sorry if i am missing something. so where is the
> SVN repository
> url to check out the code for multi threading? Thanks
> Subrah
>
>
> Paulo Soares-3 wrote:
> >
> > Try the code in the SVN, it fixes a problem in heavy multithreading.
> >
> > Paulo
> >
> > ----- Original Message -----
> > From: "subrah" <subnibh...@gmail.com>
> > To: <itext-questions@lists.sourceforge.net>
> > Sent: Monday, November 16, 2009 8:12 PM
> > Subject: Re: [iText-questions] Root Object is invalid or
> missing after PDF
> > is manipulated with iTextSharp
> >
> >
> >
> > Attached is the corrupt file.
> > if i try to read the corrupted file using pdfreader i get the error
> > message
> > saying "start ref not found". But the issue is that problem is not
> > consistant. I am able to water mark the same original file
> 2nd time using
> > the same code. So it's like randomly some file is not fully written.
> >
> > i am gussing this is because the pdfstamper is closing the
> memory stream
> > earlier than it should for some reason. However what i want
> to confirm is
> > that my understanding that the probelm is infact the memory
> stream is
> > right
> > or not?. Because i have implmented alternative technique to
> compltely
> > avoid
> > memory stream and pdf stamper but use pdfwriter and file
> stream which seem
> > to have fixed the issue in dev. But still need to get
> response from a
> > heavy
> > testing team. Any light thrwon on this subject will be of
> great help to
> > me.
> >
> > Thanks
> > Subrah
> >
> >
> >
> > Mark Storer-2 wrote:
> >>
> >> A: Most of the folks on the list lean toward Java.
> >> B: If no one knows the answer, no one answers.
> >>
> >> Perhaps you could post one of your corrupted PDFs?
> >>
> >> --Mark Storer
> >> Senior Software Engineer
> >> Cardiff.com
> >>
> >> #include <disclaimer>
> >> typedef std::Disclaimer<Cardiff> DisCard;
> >>
> >>
> >>
> >>> -----Original Message-----
> >>> From: subrah [mailto:subnibh...@gmail.com]
> >>> Sent: Monday, November 16, 2009 8:50 AM
> >>> To: itext-questions@lists.sourceforge.net
> >>> Subject: Re: [iText-questions] Root Object is invalid or
> missing after
> >>> PDF is manipulated with iTextSharp
> >>>
> >>>
> >>>
> >>> Hi All,
> >>>
> >>> I am wondering why nobody is interested in responding to my
> >>> question? I seem
> >>> to have found a fix but just wanted to confirm with experts
> >>> on this forum.
> >>> So any help is greatly appreciated.
> >>>
> >>> Thanks
> >>> Subrah
> >>>
> >>>
> >>>
> >>> subrah wrote:
> >>> >
> >>> > Hi
> >>> > Sorry resending this post as i was not registered user earlier.
> >>> >
> >>> > i am using latest iTextSharp library to edit the pdf
> >>> documents to put the
> >>> > water marking digitallly (hidden). So when i researched i
> >>> found that i can
> >>> > add a annotation to the pdf document and then set the flags to
> >>> > annotation.Flags = PdfAnnotation.FLAGS_NOVIEW |
> >>> > PdfAnnotation.FLAGS_INVISIBLE | PdfAnnotation.FLAGS_HIDDEN;
> >>> to make it
> >>> > invisible.
> >>> >
> >>> > so this is working fine as expected 90% of the time.
> >>> Remaning 10 % of the
> >>> > time i get an error when i open the document after adding
> >>> the annotation
> >>> > it says "Root object is invalid or missing"
> >>> >
> >>> > so looks like it corrupted the file trying to add the
> >>> annoation. do you
> >>> > have any suggestion? i can share the code i am using to add
> >>> the annotation
> >>> > if that helps.
> >>> >
> >>> > Full code
> >>> > public static byte[] EditPdf(string sourceFile, string
> >>> visibleWaterMark,
> >>> > string digitalWaterMark)
> >>> > {
> >>> > PdfReader reader = new PdfReader(sourceFile);
> >>> > using (MemoryStream memoryStream = new
> MemoryStream())
> >>> > {
> >>> > PdfStamper pdfStamper = new PdfStamper(reader,
> >>> > memoryStream);
> >>> > // process every page in the pdf file
> >>> > for (int i = 1; i <= reader.NumberOfPages; i++)
> >>> > {
> >>> > Rectangle pageSize =
> >>> > reader.GetPageSizeWithRotation(i);
> >>> > PdfContentByte pdfPageContents =
> >>> > pdfStamper.GetUnderContent(i);
> >>> > PdfAnnotation annotation =
> >>> > PdfAnnotation.CreateText(pdfStamper.Writer, new
> >>> Rectangle(200f, 400f,
> >>> > 300f, 500f), digitalWaterMark,
> >>> > "Street Events
> >>> Digital Watermark",
> >>> > false, "Key");
> >>> > //digital water marking
> >>> > annotation.Flags =
> PdfAnnotation.FLAGS_NOVIEW |
> >>> > PdfAnnotation.FLAGS_INVISIBLE | PdfAnnotation.FLAGS_HIDDEN;
> >>> > pdfStamper.AddAnnotation(annotation, i);
> >>> > pdfPageContents.BeginText();
> >>> > BaseFont baseFont =
> >>> > BaseFont.CreateFont(BaseFont.HELVETICA_BOLD,
> >>> Encoding.ASCII.EncodingName,
> >>> > BaseFont.NOT_EMBEDDED);
> >>> >
> pdfPageContents.SetFontAndSize(baseFont, 10);
> >>> >
> pdfPageContents.SetRGBColorFill(225, 224, 223);
> >>> > // visible water marking
> >>> >
> >>> > pdfPageContents.ShowTextAligned(PdfContentByte.ALIGN_RIGHT,
> >>> > visibleWaterMark,
> >>> >
> >>> pageSize.Width - 50,
> >>> >
> >>> pageSize.Height - 15,
> >>> > 0);
> >>> > pdfPageContents.EndText();
> >>> > pdfStamper.FormFlattening = true;
> >>> >
> >>> > }
> >>> >
> >>> > pdfStamper.Close();
> >>> > return memoryStream.ToArray();
> >>> > }
> >>> >
> >>> >
> >>> >
> >>> > public static void SaveFile(string fileHandle, byte[]
> fileBytes)
> >>> > {
> >>> > using(FileStream fs = new FileStream(fileHandle,
> >>> > FileMode.Create))
> >>> > {
> >>> > fs.Write(fileBytes, 0, fileBytes.Length);
> >>> > fs.Flush();
> >>> > fs.Close();
> >>> > }
> >>> >
> >>> > }
> >>> >
> >>> > //call
> >>> > FileInfo pdfFileInfo = new FileInfo(newFilePath);
> >>> > byte[] fileBytes = PdfWaterMarker.EditPdf(pdfFileInfo,
> >>> > string.Format("Client Id: {0}", clientSite.ClientId));
> >>> > PdfWaterMarker.SaveFile(newFilePath, fileBytes);
> >>> >
> >>> > please let me know
> >>> > Thanks
> >>> > Subrah
> >>> >
> >>> >
> >>>
> >>> --
> >>> View this message in context:
> >>> http://old.nabble.com/Root-Object-is-invalid-or-missing-after-
> >> PDF-is-manipulated-with-iTextSharp-tp26305073p26375297.html
> >> Sent from the iText - General mailing list archive at Nabble.com.
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