Re: 128-bit encryption, no owner password

IT_Hank wrote:

Thanks Paulo for the information.

-----Original Message-----
From: Paulo Soares [mailto:psoares@glintt.com]
Sent: Saturday, June 13, 2009 4:41 AM
To: Post all your questions about iTextSharp here
Subject: Re: [itextsharp-questions] 128-bit encryption, no owner password

From the PDF reference:

Authors of software that accepts input in the form of the Portable Document
Format must make reasonable efforts to ensure that the software they create
respects
the access permissions and permissions controls listed in Table 3.20 of
this specification, to the extent that they are used in any particular
document.
These access permissions express the rights that the document’s author has
granted to users of the document. It is the responsibility of Portable
Document
Format consumer software to respect the author’s intent.

Paulo

----- Original Message -----
From: "IT_Hank" <KHendricks@InsuranceTechnologies.com>
To: <itextsharp-questions@lists.sourceforge.net>
Sent: Friday, June 12, 2009 10:39 PM
Subject: Re: [itextsharp-questions] 128-bit encryption, no owner password


>
> Hello Paulo,
>
> I have been looking on the Adobe site for the license that indicates that
> a
> owner password is required on a PDF document ("legal imposition).  I was
> wondering if you could point me to the correct license agreement that
> includes this text.  I need to pass this on to our business leaders.
>
> Thank you,
>
> Kevin
>
>
> 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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------------------------------------------------------------------------------
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Check out the new simplified licensing option that enables unlimited
royalty-free distribution of the report engine for externally facing
server and web deployment.
http://p.sf.net/sfu/businessobjects
_______________________________________________
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