title: HTML to PDF with Wicked PDF and letter-spacing issues
body: <p>Using both 0.79 and 0.7.2 the PDF generated looks slightly different than my original HTML.  Adding the show_as_html flag presents it as expected however the inline-styles are being handled differently in the PDF then they are in the HTML preview.</p>
  
  <p>Specifically the problem I'm having is with letter-spacing declarations which also have a float not being rendered correctly.  So for instance on a right float element which has the letter-spacing, the PDF will space the characters too much and from center such that the text goes partially off the screen rather than bumping further to left for the difference of the letter-spacing width.</p>
  
  <p>Here is the original HTML snippet:</p>
  
  <p>
     
    
      </p>
  
  <p>
    
       </p>
  
  <pre><code>&lt;table width="800" border="0"&gt;
  
    &lt;tr&gt;
      &lt;td colspan="3"&gt;&lt;span style="font-family:Helvetica, Arial, sans-serif;font-size:10pt;margin-top:18px;text-transform:uppercase;float: right;letter-spacing:2pt"&gt;Winter 2013&lt;/span&gt;&lt;/td&gt;
    &lt;/tr&gt;
  &lt;/table&gt;
  </code></pre>
  
  <p>
    
  </p>
  
  <p>Here is the code doing the rendering:</p>
  
  <p><code>
        render :pdf =&gt; 'file_name',
               :template =&gt; 'template.html.erb',
               :layout =&gt; 'pdf.html'
  </code></p>
  
  <p>Here is the rendered HTML: <a href="http://jsfiddle.net/wX4DQ/" rel="noreferrer">http://jsfiddle.net/wX4DQ/</a></p>
  
  <p>Here is the outputted PDF: <a href="http://imgur.com/sdUPM" rel="noreferrer">http://imgur.com/sdUPM</a></p>
  
  <p>I noticed there are a few bug reports on <a href="http://code.google.com/p/wkhtmltopdf/issues/list?can=2&amp;q=letter+spacing&amp;colspec=ID+Type+Status+Priority+Milestone+Owner+Summary&amp;cells=tiles" rel="noreferrer">wkhtmltopdf</a> about this which seem to be related.  Could that be the culprit of this issue, what's an acceptable work-around?  </p>
  
  <p>I've tried different fonts but I really have to use Helvetica.</p>
  
  <p>Any suggestions as to what do here or a plausible work around?</p>