Shortcode for Embedding PDF's - Used in DobsonDev Shortcodes Plugin for WordPress

embedPDF-shortcode.php

<?php

/* Adds a shortcode for displaying PDF's Inline */
function dobson_embed_PDF($atts) {
  extract(shortcode_atts(array(
    'source' => "Invalid Source",
    'width' => "100%",
    'height' => "600",
  ), $atts));
  $source_headers = @get_headers($source);
  if (strpos($source_headers[0], '404 Not Found')) {
    return '<p> Invalid PDF source. Please check your PDF source. </p>';
  } else {
    return '<object width="' . $width . '" height="' . $height . '" type="application/pdf" data="'
    . $source . '"></object>';
  }
}
add_shortcode('embedPDF', 'dobson_embed_pdf');

?>