title: JsPDF and chart.js: Increase chart resolution
body: <p>I have written some code that displays two chart.js charts on a web page and then alows user to download the charts in pdf using jsPDF. The problem is that the resolution of the charts in pdf depends on the dpi settings of the display. For example, when I create the pdf using my work PC (1080p) the resolution is pretty bad. However, when my colleague uses us Macbook to generate the pdf, the images are very crisp.</p>
  <p>How can I make the images independant of the display resolution and always produce high-res images. I am using <code>toDataURL</code> along with <code>addImage</code> to insert images into PDF.</p>
  <p>I can also upload the code if needed.</p>
  <p>Thanks</p>