*/
private static void insertWatermarkText(Document doc, String watermarkText) throws Exception
{
// Create a watermark shape. This will be a WordArt shape.
// You are free to try other shape types as watermarks.
Shape watermark = new Shape(doc, ShapeType.TEXT_PLAIN_TEXT);
// Set up the text of the watermark.
watermark.getTextPath().setText(watermarkText);
watermark.getTextPath().setFontFamily("Arial");
watermark.setWidth(500);
watermark.setHeight(100);
// Text will be directed from the bottom-left to the top-right corner.
watermark.setRotation(-40);
// Remove the following two lines if you need a solid black text.
watermark.getFill().setColor(Color.GRAY); // Try LightGray to get more Word-style watermark
watermark.setStrokeColor(Color.GRAY); // Try LightGray to get more Word-style watermark
// Place the watermark in the page center.
watermark.setRelativeHorizontalPosition(RelativeHorizontalPosition.PAGE);
watermark.setRelativeVerticalPosition(RelativeVerticalPosition.PAGE);
watermark.setWrapType(WrapType.NONE);
watermark.setVerticalAlignment(VerticalAlignment.CENTER);
watermark.setHorizontalAlignment(HorizontalAlignment.CENTER);
// Create a new paragraph and append the watermark to this paragraph.
Paragraph watermarkPara = new Paragraph(doc);
watermarkPara.appendChild(watermark);