anchor.diff:  
   === Convert AsciiDoc to PDF
   
  -IMPORTANT: You'll need to the `coderay` gem installed to run this example since it uses the `source-highlighter` attribute with the value of `coderay`.
  -
   Converting to PDF is a simple as running the `asciidoctor-pdf` script using Ruby and passing our AsciiDoc document as the first argument.
   
    $ asciidoctor-pdf basic-example.adoc
  
positive.code: 
  .Pygments
   $ gem install pygments.rb
  
  Assuming all the required gems install properly, verify you can run the `asciidoctor-pdf` script:
  
  
negative.code: To learn how the theming system works and how to create and apply custom themes, refer to the <<docs/theming-guide.adoc#,Asciidoctor PDF Theme Guide>>.
  You can use the built-in theme files, which you can find in the [file]_data/themes_ directory, as examples.
  
  == Icons
  
  You can use icons in your PDF document by using one of 4 icon sets.
  
  fa - Font Awesome
  octicon - Octicons
  fi - Foundation icons
  pf - Payment font
  
  You can set the following attributes globally at the top of your document
  
  :icons: font
  :icon-set: octicon
  
  An example for "the amazon icon in the pf (payment font) icon set" is written as:
  
  Available now at icon:amazon[set=pf]
  
  In addition to the sizes supported in the HTML backend (lg, 1x, 2x, etc), you can enter any relative value in the size attribute (e.g., 1.5em, 150%, etc).
  
  icon:android[size=40em]
  
  Coloring of the icon is unsupported yet.
  
  You can enable use of fonts during PDF generation with the following command. In this example, we enable font awesome icons
  
   $ asciidoctor-pdf -a icons=font basic-example.adoc
  
  == Optional scripts
  
  {project-name} also provides a shell script that invokes GhostScript (`gs`) to optimize and compress the generated PDF with minimal impact on quality.
  