It can't.
If you make ANY changes to the PDF you will break the rights. It's
specifically designed this way to detect tampering.
The only choice you have, if you wish to distribute a file with
Reader Enablement is to purchase Adobe LiveCycle ES and have it
process your document AFTER you do whatever dynamic functionality you
wish.
Leonard
On Feb 5, 2008, at 6:20 AM, Samuel B. Quiring wrote:
I don't get it. How should this code be rewritten so that the
resulting PDF still has the rights? Do you know for a fact that it
can be done?
-Sam
From: [EMAIL PROTECTED] [mailto:itext-
[EMAIL PROTECTED] On Behalf Of Leonard
Rosenthol
Sent: Tuesday, February 05, 2008 6:09 AM
To: Post all your questions about iText here
Subject: Re: [iText-questions] How to change a PDF but preserve the
rights
You rewrote the PDF - therefore you changed it.
Leonard
On Feb 4, 2008, at 10:32 PM, Samuel B. Quiring wrote:
Leonard,
Are you sure? I have tried a few variations and I have not been
able to get anything to work. I now have a simple identity()
routine that changes nothing. The incoming PDF has rights that
lets Reader save filled-in data. The resulting PDF has the rights
removed. As far as I can tell, I changed nothing. What did I do
wrong? Here is the code:
public static void identity()
{
PdfReader reader = new PdfReader("C:/tmp/niceForm.pdf");
reader.setAppendable(true);
XfaForm xfaForm = new XfaForm(reader);
FileOutputStream pdfOutput = new FileOutputStream("C:/tmp/
newFormOut.pdf");
PdfStamper stamper = new PdfStamper(reader, pdfOutput);
xfaForm.setXfa(stamper.getWriter());
stamper.close();
pdfOutput.close();
reader.close();
}
-Sam
----- Original Message -----
From: Leonard Rosenthol
To: Post all your questions about iText here
Sent: Monday, December 03, 2007 4:20 AM
Subject: Re: [iText-questions] How to change a PDF but preserve
the rights
It _IS_ possible to fill in a PDF that has been "Reader Enabled" w/
o violating the rights - but it MUST be done in a very specific
fashion using "append mode" on the source PDF AND only modifying a
limited number of objects in the PDF.
So yes, if you are going to create a whole new PDF - you'll break
the "Reader Enabling". If you're careful about what you do, and
how you do it, you CAN accomplish your goal.
Leonard
On Dec 3, 2007, at 2:05 AM, Samuel B. Quiring wrote:
I have a PDF containing an XFA form; isXfaPresent() == true. The
PDF was authored so that it can be opened in Adobe Reader, fields
in the form can be filled, and the form can be saved by Reader to
the file system.
Using iText I have read in the PDF, obtained the XfaForm, changed
values in the XML Document, and written a new PDF to the file
system.
The PDF I write out contains the values I put into the XML, but
the rights to save the PDF from Reader have been lost. Is this
expected? Other features of the original PDF are also lost in the
newly-written PDF.
I wrote the changed PDF to a new file. If this is the reason the
save rights were lost, is there a way I can modify the existing
PDF in place so that the rights to save the file from Adobe
Reader are maintained?
-Sam
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