I am trying to do some kind of "fill in" a predefined form but
apparently this doesn't exist with iText.
So, it seems like a pretty popular approach is to add form fields/text
boxes with in the PDF document read in the document and set those
values. I have two questions. First question, what is the best way to
do this. Also, can I change the visual aspects of the text box. Can I
increase the font, possibly disable the border around the edit box.
Here is the code I have. I am able to read the document and write it
back out. But I get an error when I resave the document.
public static final ByteArrayOutputStream generatePDFDocumentBytes()
throws DocumentException, IOException {
Document document = null;
PdfWriter writer = null;
ByteArrayOutputStream baosPDF = new ByteArrayOutputStream();
final PdfReader reader = new PdfReader(PATH);
Rectangle psize = reader.getPageSizeWithRotation(1);
float height = psize.height();
int rotation = reader.getPageRotation(1);
document = new Document(psize, 0,0, 0,0);
writer = PdfWriter.getInstance(document, baosPDF);
document.open();
document.newPage();
PdfImportedPage page = writer.getImportedPage(reader,1);
PdfContentByte cb = writer.getDirectContent();
cb.addTemplate(page, 0, -1f, 1f, 0, 0, height);
PdfStamper stamp = new PdfStamper(reader, baosPDF);
AcroFields form = stamp.getAcroFields();
HashMap formFields = form.getFields();
System.out.println(formFields.size());
for (Iterator it = formFields.entrySet().iterator();
it.hasNext(); ) {
Map.Entry e = (Map.Entry) it.next();
final String fieldName = (String) e.getKey();
System.out.println("==>" + fieldName);
System.out.println("==>" + e.getKey() + " // " +
e.getValue());
//form.setField(fieldName, "New");
}
stamp.setFormFlattening(true);
stamp.close();
document.close();
return baosPDF;
}
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