Sorry about the misleading information, PdfAcroForm can't be used in
PdfStamper. To create a blank signature field in PdfStamper:
PdfFormField sig = PdfFormField.createSignature(stamper.getWriter());
sig.setWidget(new Rectangle(100, 100, 200, 200), null);
sig.setFlags(PdfAnnotation.FLAGS_PRINT);
sig.put(PdfName.DA, new PdfString("/Helv 0 Tf 0 g"));
sig.setFieldName("Signature1");
sig.setPage();
stamper.addAnnotation(sig, 1);
> -----Original Message-----
> From: James McCarthy [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, June 14, 2005 1:34 AM
> To: Paulo Soares
> Subject: RE: [iText-questions] Adding Signature Field
>
> Paulo,
>
> Thanks for your reply. I developed some prototypes today but
> I can not get
> past an exception being thrown when I call addSignature. The
> steps I am
> taking are to create a PDF using XSLT and FO. Next I opened
> the generated
> document using
>
> PdfStamper stamper = new PdfStamper(new PdfReader(fi), fo);
> PdfWriter writer = stamper.getWriter();
> PdfAcroForm acroform = writer.getAcroForm();
>
> /*
> * Both of the following two lines throws an exception.
> */
> acroform.addHiddenField("Test", "Test");
> acroform.addSignature("ROSignature", 0.0f,0.0f,0.0f,0.0f)
>
> I will see if I can trace it down by running a small test but
> I think it has
> to do with opening an existing document and the annotations not being
> initialized.
>
> Sincerely,
>
> Jim McCarthy
>
> -----Original Message-----
> From: Paulo Soares [mailto:[EMAIL PROTECTED]
> Sent: Monday, June 13, 2005 6:08 PM
> To: [EMAIL PROTECTED]; itext-questions@lists.sourceforge.net
> Subject: Re: [iText-questions] Adding Signature Field
>
>
> ----- Original Message -----
> From: "James McCarthy" <[EMAIL PROTECTED]>
> To: <itext-questions@lists.sourceforge.net>
> Sent: Monday, June 13, 2005 3:40 PM
> Subject: [iText-questions] Adding Signature Field
>
>
> > I have searched the archives and did not find anything that
> specifically
> > addressed my questions so here goes.
> >
> > I am generating a PDF document using XSLT Formatting
> Objects (FO). The
> > document does not have any form fields but I would like to add the
> following
> > once the document is generated:
> >
> > 1. Add a few hidden fields with meta information about the
> document (I
> think
> > I can figure this one out).
> > 2. Add a signature field (hidden or visible) that will
> allow the user to
> > sign the document using the Adobe Reader.
> >
>
> PdfAcroForm.addSignature()
>
> > My questions are how to add the signature field for later
> signing and does
> > the signature field sign the entire document or just the hidden form
> fields?
> > I need it to sign the entire document.
> >
>
> The signing covers the entire doc.
>
> > Thanks for your help,
> >
> > Jim
> >
> >
> >
> >
> > -------------------------------------------------------
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>
>
>
>
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