Corrupted alignment of i-text when rendering them with node-canvas

[konkissner]

To generate a printable PDF on my nodejs server, i have to move all objects depending on their position on the printsheet:

canvas.loadFromJSON(printPageCanvas, function() {
  canvas.renderAll();

  fs.writeFile(
    test.pdf, canvas.nodeCanvas.toBuffer(), function(err) {
      //done
    });
}, function(o, object) {
  //move all objects of page to the position of the page relative to the printpage.
  object.set(
    {
      left: object.left + object.printPageMargin
    }).setCoords();
});                    

When rendering the objects without moving them (in the browser), the i-text elements with fontAlignment = "center" are displayed correctly:

When moving them on the canvas, the alignment and font-styling is corrupted: