hum.. I was getting the signature appearance before to fill the
fields.. perhaps the order of the code impact in its output.. I will
check.. thank you very much....
I am also trying this line:
sap.setCertificationLevel(PdfSignatureAppearance.CERTIFIED_NO_CHANGES_ALLOWED):
and it never works..
On 6/14/07, Paulo Soares <[EMAIL PROTECTED]> wrote:
> Works for me with this code:
>
> PdfReader reader = new PdfReader("c:\\hello_field.pdf");
> PdfStamper stp = PdfStamper.createSignature(reader, new
> FileOutputStream("c:\\hello_field_sig.pdf"), '\0');
> AcroFields af = stp.getAcroFields();
> af.setField("Text1", "BUM");
> PdfSignatureAppearance sap = stp.getSignatureAppearance();
> sap.setCrypto(key, chain, null, PdfSignatureAppearance.WINCER_SIGNED);
> // and so on
>
> Paulo
>
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On
> > Behalf Of Felipe Gaúcho
> > Sent: Thursday, June 14, 2007 9:40 AM
> > To: [email protected]
> > Subject: [iText-questions] signing PDF
> >
> > Hi,
> >
> > I am creating a new project:
> > http://weblogs.java.net/blog/felipegaucho/archive/2007/06/intr
> > oducing_the.html
> >
> > it is already running some features, but the PDF details about digital
> > signature and iText seems a bit odd for me.
> >
> > in my basic use-case, the code:
> >
> > 1 - read a PDF tamplate
> >
> > 2 - fill form fields:
> > 2.1 - connect to a JDBC data source
> > 2.2 - read a mapping properties (mapping between the PDF fields
> > and Column names)
> > 2.3 - fill the fields using the values read from database and the
> > mapping properties
> >
> > 3 - sign the pdf
> >
> > 4 - save the new PDF (with filled fields and signed)
> >
> > ---------------------------
> >
> > If I try to do that using that sample from the iText documentation,
> > the generated PDF is never recognized as authentic signed PDF by Adobe
> > because it say the content was changed since the pdf generation...
> >
> > If I do that in two steps: first generating and saving a modified PDF,
> > and then re-open this pdf, sign and save, everything works fine and
> > Adobe don't disclaim anymore..
> >
> > Why can't I do that in just 1 step ?
> >
> >
> > best regards,
> >
> > Felipe Gaucho
>
>
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