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-tp26305073p26305073.html
Sent from the iText - General mailing list archive at Nabble.com.
------------------------------------------------------------------------------
Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
trial. Simplify your report design, integration and deployment - and focus on
what you do best, core application coding. Discover what's new with
Crystal Reports now. http://p.sf.net/sfu/bobj-july
_______________________________________________
iText-questions mailing list
iText-questions@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/itext-questions
Buy the iText book: http://www.1t3xt.com/docs/book.php
Check the site with examples before you ask questions:
http://www.1t3xt.info/examples/
You can also search the keywords list: http://1t3xt.info/tutorials/keywords/
