Scale image before toDataURL - html2canvas

Before you tell me this is a duplicate question, know that I've searched through every single similar question and none of the answers in any of them are working for me. Im using html2canvas to grab a snapshot of a div, and what I need to do is scale it up to 750x1050 before saving it to a png via `canvas.toDataURL()`. The closest I got was with the following code. ``` html2canvas(document.getElementById('div_id'), { onrendered: function(canvas) { var extra_canvas = document.createElement("canvas"); extra_canvas.setAttribute('width', 750); extra_canvas.setAttribute('height', 1050); var ctx = extra_canvas.getContext('2d'); ctx.drawImage(canvas, 0, 0, 750, 1050); var dataURL = extra_canvas.toDataURL(); window.open(dataURL); } }); ``` The image was sized properly but the text within the image was extremely poor quality, as if it resized it after becoming a png. Is it that I'm doing something wrong or can you just not scale up this way? Any and every suggestion/work-around will be greatly appreciated!