[iText-questions] Inserting Field in existing PDF file

[Nicholas Sutanto]

Hi, I'm trying to make a new field. What I'm doing right now is I make a new document and insert the field to the new document. So let say I have input.pdf file which contains the original file and result.pdf which contain only the new fields. So how do I concantenate them? Is it the right way to insert the field? Below are sample of my code.      Document document = new Document();       FileOutputStream file_result = new FileOutputStream("result.pdf");         PdfWriter writer = PdfWriter.getInstance(document, file_result);       document.open();       TextField field1 = new TextField(writer, new Rectangle(50, 760, 50 + 100, 760+50), "Value1");            PdfFormField fieldt1 = field1.getTextField();       writer.addAnnotation(fieldt1);       document.close();       writer.close();       Then what should I do next? Is this the right step? Thanks. Nicholas.