title: Reduce border width on QR Codes generated by ZXing?
body: <p>I'm using <code>com.google.zxing.qrcode.QRCodeWriter</code> to encode data and <code>com.google.zxing.client.j2se.MatrixToImageWriter</code> to generate the QR Code image. On a 400x400 image, there is about a 52 pixel wide border around the code. I'd like this border to be narrower, maybe 15 pixels, but I don't see anything in the API for doing that. Am I missing something in the documenation? Or would I need to process the image myself?</p>
  
  <p>For reference, here is an example 400x400 QR Code produced with the ZXing library:</p>
  
  <p><img src="https://i.stack.imgur.com/oKhVp.png" alt="An example QR Code"></p>