title: How to achieve constant width for barcodes; regardless of barcode-data
body: <p>Currently I'm programming a label-writer (Brother QL-570, if it matters, in Java) to print barcodes with different ID's. The length of the barcode data can vary from ~17 characters to ~3. </p>
  
  <p>However, given that I've understood the barcode-concept correctly, the more data - the wider will the barcode become.</p>
  
  <p>I'd prefer if all barcodes had the same, contstant size: no matter data-length. (It won't look good if the barcode doesn't fill up the label, nor will it (work) if it's too large)</p>
  
  <p><strong>How can one handle this when the labels are at a fixed size (i.e 29mm x 90mm)?</strong> How did you / your company solve this problem? 2D-barcodes aren't an option. Sadly.</p>
  
  <p><img src="https://i.stack.imgur.com/G6sm2.jpg" alt="enter image description here"></p>