<?php

/**
 * Use this class to transform a html/a url to a pdf
 *
 * @package Snappy
 * @author Matthieu Bontemps<matthieu.bontemps@knplabs.com>
 */
class SnappyPdf extends SnappyMedia
{
    protected $defaultExtension = 'pdf';
    protected $options = array(
        'ignore-load-errors' => null,                          // old v0.9
        'lowquality' => true,
        'username' => null,
        'password' => null,
    );
    
}

<?php

/**
 * Use this class to transform a html/a url to a pdf
 *
 * @package Snappy
 * @author Matthieu Bontemps<matthieu.bontemps@knplabs.com>
 */
class SnappyPdf extends SnappyMedia
{
    protected $defaultExtension = 'pdf';
    protected $options = array(
        'ignore-load-errors' => null,                          // old v0.9
        'lowquality' => true,
    );
    
}

--- 
+++ 
@@ -12,6 +12,8 @@
     protected $options = array(
         'ignore-load-errors' => null,                          // old v0.9
         'lowquality' => true,
+        'username' => null,
+        'password' => null,
     );
     
 }
Add http auth in snappy pdf
