Question

I try do this:

Bitmap bitmapOrg = BitmapFactory.decodeFile("/sdcard/"+ photoName + ".jpg");

        int width = bitmapOrg.getWidth();
        int height = bitmapOrg.getHeight();

        Matrix matrix = new Matrix();

        matrix.postRotate(90);

        Bitmap resizedBitmap = Bitmap.createBitmap(bitmapOrg, 0, 0, width,
                height, matrix, true);

        FileOutputStream os;
        try {
            os = new FileOutputStream(String.format(
                "/sdcard/" + photoName + "-rotate.jpg",
                    System.currentTimeMillis()));

        resizedBitmap.compress(Bitmap.CompressFormat.JPEG, 100, os);

rotated file size > original file size, because rotated file resolution = 96 dpi, but original file = 72 dpi. Why is this happening and how to fix it?

Answer 1

You could add in the following line right before FileOutputStream os;:

resizedBitmap.setDensity(bitmapOrig.getDensity());