Re: Itext : do not know how to remove watermark (filigrane)

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 Â…
>
> Please helpÂ….
>
> Annots id Nothing Â… Which is the property to use ? CONTENTS seems not 
> working alsoÂ…
>
> 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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------------------------------------------------------------------------------
New Year. New Location. New Benefits. New Data Center in Ashburn, VA.
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.
http://p.sf.net/sfu/gigenet

_______________________________________________
iText-questions mailing list
[email protected]
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