Re: 128-bit encryption, no owner password

Paulo Soares wrote:

That's a legal imposition from Adobe. You must have the owner password.

Paulo

> -----Original Message-----
> From: itextsharp-questions-bounces@lists.sourceforge.net
> [mailto:itextsharp-questions-bounces@lists.sourceforge.net]
> On Behalf Of IT_Hank
> Sent: Tuesday, May 13, 2008 4:00 PM
> To: itextsharp-questions@lists.sourceforge.net
> Subject: [itextsharp-questions] 128-bit encryption, no owner password
>
>
> We have an application that is creating a 128-bit encrypted
> PDF without user
> or owner passwords.  When performing a PdfCopy.GetImportPage
> method call,
> the GetImportPage method fails in version 4.1.1.0.  This
> worked in version
> 3.1.6.0.
>
> The error might stem from the following:
>
> //this is the error being thrown because false is being returend from
> "IsOpenedWillFullPermissions".
>
>         internal PdfImportedPage GetImportedPage(int pageNumber) {
>             if (!reader.IsOpenedWithFullPermissions)
>                 throw new ArgumentException("PdfReader not
> opened with owner
> password");
>
> //this method returns false if encrypted and no password is supplied.
>
>         public bool IsOpenedWithFullPermissions {
>             get {
>                 return !encrypted || ownerPasswordUsed;
>             }
>         }
>
> //this is the calling code
> Snippet one...
>      if (reportGuid != Guid.Empty)
>      {
>         SQLFileInfo inputInfo = new SQLFileInfo(reportGuid);
>         using (SQLFileStream inputStream =
> inputInfo.Open(System.IO.FileMode.Open))
>         {
>             reader = new PdfReader(inputStream, null);
>             if (copy == null)
>             {
>                 doc = new Document(reader.GetPageSizeWithRotation(1));
>                 copy = new PdfCopy(doc, outputStream);
>                 doc.Open();
>              }
>             //copy the pages
>              CopyPages(copy, reader);
>           }
>    }
>
> Snippet two...
>         private void CopyPages(PdfCopy copy, PdfReader reader)
>         {
>             for (int i = 1; i <= reader.NumberOfPages; i++)
>             {
>                 //This is where the error happens
>                 copy.AddPage(copy.GetImportedPage(reader, i));
>             }
>         }


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