Unused bits are set to one. You can feed it to setEncryption() and it will
work.
Paulo
----- Original Message -----
From: "Michael Schierl" <[EMAIL PROTECTED]>
To: <itext-questions@lists.sourceforge.net>
Sent: Sunday, July 08, 2007 7:21 PM
Subject: [iText-questions] PdfReader#getPermissions() returns strange
results
> Hello,
>
> I thought that PdfReader#getPermissions returns the permissions used when
> encrypting a document, in the same format as
> PdfEncryptionSettings#setEncryption wants them. However, I only get
> strange
> results. For example, a document without any permissions (like the one
> created in the code below) will have permissions of -64 and not 0 as I
> used
> for creating it.
>
> Bug or feature?
>
> Michael
>
> Example code:
> -----
> import java.io.FileOutputStream;
> import com.lowagie.text.*;
> import com.lowagie.text.pdf.*;
>
> public class StrangePermissions {
> public static void main(String[] args) throws Exception {
> Document d = new Document();
> PdfWriter w = PdfWriter.getInstance(d, new FileOutputStream("test.pdf"));
> w.setEncryption(new byte[0], "Test".getBytes("ISO-8859-1"),
> 0, PdfWriter.STANDARD_ENCRYPTION_40);
> d.open();
> d.add(new Chunk("Hello, World!"));
> d.close();
> PdfReader r = new PdfReader("test.pdf", "Test".getBytes("ISO-8859-1"));
> System.out.println(r.getPermissions()); // returns -64
> }
> }
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