Example how to convert BitMatrix to SVG file

qrcode_to_svg_bit_matrix_to_svg.java

import com.google.zxing.common.BitMatrix;
import org.jfree.graphics2d.svg.SVGGraphics2D;
import org.jfree.graphics2d.svg.SVGUtils;

import java.awt.*;
import java.io.File;
import java.io.IOException;
//.....
private void bitMatrixToSVG(BitMatrix bitMatrix, File outputFileSVG) throws IOException {
  int matrixWidth = bitMatrix.getWidth();
  int matrixHeight = bitMatrix.getHeight();
  SVGGraphics2D g2 = new SVGGraphics2D(matrixWidth, matrixWidth);
  g2.setColor(Color.BLACK);

  for (int i = 0; i < matrixWidth; i++) {
    for (int j = 0; j < matrixHeight; j++) {
      if (bitMatrix.get(i, j)) {
        g2.fillRect(i, j, 1, 1);
      }
    }
  }
  SVGUtils.writeToSVG(outputFileSVG, g2.getSVGElement());
}