Add submit button to writer. 2005-06-23 - By Andrea Fantechi
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My goal is to add a submit button to a pdf template.
Which the best way to do it?
My idea was to get a pdf template, fill its form fields, copy into a new
document and, finally, add a submit button in any empty space available
inside the template.
But to add a button is possible only using PdfWriter or DirectContent.
But if I already have the template I don't understand how to do it: I
don't want to join two documents on one (2on1) putting the button in a
blank page, because I would like to place this button inside the
original template area.
This is the piece of code I'm trying to use:
//READ PDF TEMPLATE
String fileName = "template.pdf";
FileInputStream file = new FileInputStream(fileName);
PdfReader emptyTemplateReader = new PdfReader(file);
//FILL TEMPLATE FORM FIELDS
PdfStamper templateFormWriter = new PdfStamper(emptyTemplateReader,
filledTemplateOutputStream);
AcroFields templateForm = templateFormWriter.getAcroFields();
fill(templateForm, myBean);//.........
templateFormWriter.setFormFlattening(true);
templateFormWriter.close();
//COPY: WRONG CODE BECAUSE "PdfCopy doesn't allow new content!"
// PdfReader filledTemplateReader = new PdfReader(new
ByteArrayInputStream(filledTemplateOutputStream.toByteArray()));
// PdfCopyFields copy = new PdfCopyFields(response.getOutputStream());
// copy.addDocument(filledTemplateReader);
//ADD SUBMIT BUTTON
BaseFont font = BaseFont.createFont("c:\\WINNT\\Fonts\\Verdana.ttf",
BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
PdfWriter writer = copy.getWriter();
copy.getWriter().getAcroForm().addHtmlPostButton("button", "Invia il
documento firmato", "INVIA",
"http://localhost:8080/fite/PdfSignatureDichiarazioneIci", font, 12F,
0F, 0F, 10F, 10F);
copy.close();
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