You sound like you know more about the nature of the watermark.
Please share that information with us.
For instance:
- is the watermark added as an annotation or as content that is part of
the content stream?
- if it's part of the content stream, is it part of the same content
stream as the rest of the content, or is it part of a separate content
stream.
- if it's a separate content stream, is there any way to detect that the
separate content stream contains a watermark?
- is the watermark marked as a watermark, e.g. using Marked Content
operators?
Without the answer to these counter-questions, there is NO WAY any one
can answer your question. You may even be trying to do something that is
impossible, e.g. if there is no way for a machine to distinguish the
watermark from other content.
Please note that this mailing-list is about to be closed down.
You should either post your question on StackOverflow, or post it to the
issue tracker at iText Software. The latter option is only available for
iText customers.
On 1/20/2015 15:12 PM, Prevost, Sylvain wrote:
Hello,
This is my code (in VB.Net), using unprotect password process, but I
do not know really how to do to remove the watermark and then save my
file …
Please help….
Annots id Nothing … Which is the property to use ? CONTENTS seems not
working also…
The PDF has been generated with Acrobat Std. The watermark is added as
a Gif.
PrivateSub Remove_Password_PDF(ByVal F_FullName As String, ByVal
F_Name As String, ByVal Dir_Out As String)
Dim myFile As String
Dim subrep As String
Dim NewDir As String
Dim password As String = "xxxxxx"
Dim i, j As Integer
Dim nb_pages As Integer
subrep = Get_Dir_File(F_Name)
NewDir = Path.Combine(Dir_Out, subrep)
If Directory.Exists(NewDir) Then
'Ne rien Faire
Else
Directory.CreateDirectory(NewDir)
End If
myFile = Path.Combine(Dir_Out, subrep, F_Name)
Dim pdf_reader As New PdfReader(F_FullName, New
System.Text.ASCIIEncoding().GetBytes(password))
nb_pages = pdf_reader.NumberOfPages
Dim page As PdfDictionary
Dim annot As PdfDictionary
Dim annots As PdfArray
Dim content As PdfString
DimRcontent As PdfStream
For i = 1 To nb_pages
page = pdf_reader.GetPageN(i)
annots = page.GetAsArray(PdfName.ANNOTS)
If annots IsNot Nothing Then
‘Code to add here to remove WaterMark which is the overlayer
End If
Next
Dim pdf_stamper As New PdfStamper(pdf_reader, New FileStream(myFile,
System.IO.FileMode.Create))
pdf_reader.Close()
pdf_stamper.Close()
EndSub
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GigeNET is offering a free month of service with a new server in Ashburn.
Choose from 2 high performing configs, both with 100TB of bandwidth.
Higher redundancy.Lower latency.Increased capacity.Completely compliant.
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_______________________________________________
iText-questions mailing list
iText-questions@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/itext-questions
iText(R) is a registered trademark of 1T3XT BVBA.
Many questions posted to this list can (and will) be answered with a reference
to the iText book: http://www.itextpdf.com/book/
Please check the keywords list before you ask for examples:
http://itextpdf.com/themes/keywords.php
