title: Increasing default dpi value of jpg and png image in Phantomjs source files for page.render function
body: <p>I am using <strong>page.render()</strong> function in <strong>Phantomjs</strong> to create images from web page containing svg elements. The rendered image has dpi of 72 in my ubuntu machine. </p>
  
  <p>After a long searching in web I found that the default dpi value for ubuntu is 72. The resulted jpg image does not have good quality so I want to increase its dpi value (resolution).</p>
  
  <p><strong>Can I change the value in phantomjs source files? If yes, then what are the files I need to change to set a higher dpi value?</strong></p>