Saving com.itextpdf.text.Image as a image file

Question

Is there a way to save the com.itextpdf.text.Image file as a jpg file on the file system ?

Barcode39 code39 = new Barcode39();
code39.setCode(barcode);
code39.setStartStopText(false);
image39 = code39.createImageWithBarcode(cb, null, null);
image39.scaleAbsolute(width, height);
image39.setAbsolutePosition(top, left);
cb.addImage(image39);

I am creating a bar code image and adding it to a pdf. At the same time i want the image to be saved on the file system. Any help is appreciated.

OR,

Is it possible to retrieve the barcode from the pdf( both the barcode as well as the numbers under it) as an image file and save it to the file system using itext ?

Answer 1

Just convert the Barcode39 itext image into an AWT image using createAwtImage:

java.awt.Image awtImage = code39.createAwtImage(Color.BLACK, Color.WHITE);

Then convert it to a BufferedImage and store it:

BufferedImage bImage= new BufferedImage(awtImage.getWidth(), awtImage.getHeight(), BufferedImage.TYPE_INT_RGB);
Graphics2D g = bImage.createGraphics();
g.drawImage(awtImage, 0, 0, null);
g.dispose();

ImageIO.write(bImage, "jpg", new File("code39.jpg"));

Answer 2

You can use this code:

BarcodeQRCode qrcode = new BarcodeQRCode("testo testo testo", 1, 1, null);
Image image = qrcode.createAwtImage(Color.BLACK, Color.WHITE);

BufferedImage buffImg = new BufferedImage(image.getWidth(null), image.getWidth(null), BufferedImage.TYPE_4BYTE_ABGR);
buffImg.getGraphics().drawImage(image, 0, 0, null);
buffImg.getGraphics().dispose();

File file = new File("tmp.png");
ImageIO.write(buffImg, "png", file);

I hope it helps you.

Enrico