How to revoke permission to save or copy a PDF file in java

[subhasish nag]

I have created a pdf file in java with itext.But i need to make the pdf non-editable.this means i need to restricted the save,copy these options.Any body can help me?

[Ulf Dittmer]

The following code makes a copy of an existing PDF and applies certain permissions to it. See the PdfWriter class for the various permissions that are possible.

PdfReader reader = new PdfReader("my-old-file.pdf");
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream("my-new-file.pdf"));
stamper.setEncryption("my-owner-password".getBytes(), "my-user-password".getBytes(),
    PdfWriter.AllowPrinting | PdfWriter.AllowCopy, PdfWriter.STRENGTH40BITS);
stamper.close();

[ July 30, 2008: Message edited by: Ulf Dittmer ]

[Ethan Hunt]

Hello,

I'm use iText and this code :

  PdfReader reader = new PdfReader(myDoc.pdf);
        PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(myNewPdf));  

But I have this exception :

 java.lang.IllegalArgumentException: PdfReader not opened with owner password
   

I don't have this error when myDoc.pdf is on my local machine, only when it is on my server.
I need help, thank you in advance.

[Monica Salvador]

I tried this code on my program, but the result is that it asks for a password upon opening. Is there anyway that it opens the file first and then when you try to copy / print it, you will encounter a password confirmation?