private void setFillColorWhite(PdfContentByte directContent) {
directContent.setRGBColorFill(255, 255, 255);
}
/**
* Applying masks to images.
*
* @param args no arguments needed
*/
public static void main(String[] args) {
System.out.println("masked images");
Document document = new Document(PageSize.A4, 50, 50, 50, 50);
try {
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("maskedImages.pdf"));
document.open();
Paragraph p = new Paragraph("Some text behind a masked image.");
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
document.add(p);
PdfContentByte cb = writer.getDirectContent();
byte maskr[] = {
(byte) 0x3c,
(byte) 0x7e,
(byte) 0xe7,
(byte) 0xc3,
(byte) 0xc3,
(byte) 0xe7,
(byte) 0x7e,
(byte) 0x3c
};
Image mask = Image.getInstance(8, 8, 1, 1, maskr);
mask.makeMask();
mask.setInverted(true);
Image image = Image.getInstance("otsoe.jpg");
image.setImageMask(mask);
image.setAbsolutePosition(60, 550);
// explicit masking
cb.addImage(image);
// stencil masking
cb.setRGBColorFill(255, 0, 0);
cb.addImage(mask, mask.getScaledWidth() * 8, 0, 0, mask.getScaledHeight() * 8, 100, 450);
cb.setRGBColorFill(0, 255, 0);
cb.addImage(mask, mask.getScaledWidth() * 8, 0, 0, mask.getScaledHeight() * 8, 100, 400);
cb.setRGBColorFill(0, 0, 255);
cb.addImage(mask, mask.getScaledWidth() * 8, 0, 0, mask.getScaledHeight() * 8, 100, 350);
document.close();
} catch (Exception de) {
de.printStackTrace();
}
}
