I have looked at several similar posts, but I have been unable to add an
image to a push button field. I have a PDF template with a push button
field called labelField. I have been unsuccessful in several attempts at
adding an image to the button. Here is latest code that I have tried:

// start code to add image to push button field

PdfDictionary buttonDict =
(PdfDictionary)PdfReader.getPdfObject(reader.getAcroForm().getRefByName("labelField"));
PdfArray rect =
(PdfArray)PdfReader.getPdfObject(buttonDict.get(PdfName.RECT));
ArrayList list = rect.getArrayList();
PdfRectangle pdfRect = new PdfRectangle(getFloatValue(list, 0),
getFloatValue(list, 1), getFloatValue(list, 2), getFloatValue(list, 3));

PdfWriter writer = stamper.getWriter();
PdfContentByte contentByte = writer.getDirectContent();

contentByte.moveTo(0, 0);

Image image = Image.getInstance(new
LabelGenerator().generateLabel(labelDataProvider));
PdfFormField field = PdfFormField.createPushButton(writer);
PdfAppearance appearance = contentByte.createAppearance(image.width(),
image.height());
appearance.addImage(image, image.width(), 0, 0, image.height(), 0, 0);

field.setWidget(new Rectangle(pdfRect.left(), pdfRect.bottom(),
pdfRect.top(), pdfRect.right()), PdfAnnotation.HIGHLIGHT_NONE);
field.setFieldName("labelField");
field.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, "flatState",
appearance);

stamper.addAnnotation(field, 1);

// end code to add image to push button field

// helper method to extract float value
private float getFloatValue(List list, int index) {
   PdfNumber pdfNumber = (PdfNumber)list.get(index);
   return pdfNumber.floatValue();
}
// end helper method


I would greatly appreciate any insight into what I am doing wrong or if
someone can point me to some examples. Thanks in advance!

- John



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