Hello, As I have read in some posts I've created a blank signature field called
'keyfield':
PdfFormField sig = PdfFormField.createSignature(stamper.getWriter());
sig.setWidget(fieldposition, null);
sig.setFlags(PdfAnnotation.FLAGS_PRINT);
sig.put(PdfName.DA, new PdfString("/Helv 0 Tf 0 g"));
sig.setFieldName(keyfield);
sig.setPage(page);
stamper.addAnnotation(sig, page); Then after pdf manipulation and form filling
the document needs to be automatically signed.with iText but I don't know how
to achieve this. It's possible to get the "PdfSignatureAppearance" linked to
'keyfield' blank signature field previously created?
As I have read, I know that I will have to do a 'preclose' to calculate
document size before 'close' SignatureAppearance, but I haven't found any
constructor like:
PdfSignatureAppearance tSignatureAppearance = tStamper.getSignatureAppearance
("keyfield"); // get 'keyfield' signature appearance
It's necessary to fill the blank signature field just after it has been created
with
PdfStamper tStamper = PdfStamper.createSignature(tReader,tOutStream,'\0');
as is explained everywhere?
http://itextpdf.sourceforge.net/howtosign.htmlhttp://www.mail-archive.com/[email protected]/msg34083.htmlhttp://www.mail-archive.com/[email protected]/msg17968.htmlhttp://answers.suziana.com/2006/12/12/re-computing-the-signature-size-before-signing-2.html
Thanks a lot!
Ismael Fortuny
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