How to use

makeMask

method

in

com.itextpdf.text.Image

 BarcodeQRCode qrcode = new BarcodeQRCode("sample message on qr", 100, 100, null);
Image image = qrcode.getImage();
Image mask = qrcode.getImage();
mask.makeMask();
image.setImageMask(mask);
document.add(image);

msk.makeMask();
msk.setInverted(true);
image.setImageMask(msk);

Image sm = Image.getInstance(w, h, 1, 8, smask);
try {
  sm.makeMask();
  img.setImageMask(sm);
} catch (DocumentException de) {

mzip.close();
Image mimg = Image.getInstance(w, h, 1, bitsPerSample, mstream.toByteArray());
mimg.makeMask();
mimg.setDeflated(true);
img.setImageMask(mimg);

mzip.close();
Image mimg = Image.getInstance(w, h, 1, bitsPerSample, mstream.toByteArray());
mimg.makeMask();
mimg.setDeflated(true);
img.setImageMask(mimg);

if (palShades) {
  Image im2 = Image.getInstance(width, height, 1, 8, smask);
  im2.makeMask();
  img.setImageMask(im2);
  im2.makeMask();
  img.setImageMask(im2);

if (palShades) {
  Image im2 = Image.getInstance(width, height, 1, 8, smask);
  im2.makeMask();
  img.setImageMask(im2);
  im2.makeMask();
  img.setImageMask(im2);