diff --git a/pdf_using_mpdf.admin.inc b/pdf_using_mpdf.admin.inc
index b1a997e..5cbd31a 100644
--- a/pdf_using_mpdf.admin.inc
+++ b/pdf_using_mpdf.admin.inc
@@ -30,7 +30,7 @@ function pdf_using_mpdf_config() {
     $form['pdf']['pdf_using_mpdf_pdf_save_option'] = array(
       '#type' => 'radios',
       '#title' => t('Open PDF File in'),
-      '#options' => array(t('Web Browser'), t('Save Dialog Box'), t('Save to Server')),
+      '#options' => array(t('Web Browser'), t('Save Dialog Box'), t('Save to Server'), t('Save to Field (API only)')),
       '#default_value' => variable_get('pdf_using_mpdf_pdf_save_option'),
       '#description' => t("Default's to Web Browser."),
     );
diff --git a/pdf_using_mpdf.module b/pdf_using_mpdf.module
index 3ec80db..77d85c4 100644
--- a/pdf_using_mpdf.module
+++ b/pdf_using_mpdf.module
@@ -94,8 +94,19 @@ function _pdf_using_mpdf_attributes_access($node) {
  *   contents of the template already with the node data.
  * @param string $filename
  *   name of the PDF file to be generated.
+ * @param array $field_data
+ *   field_data is array with the following structure:
+ *   - entity_type
+ *   - bundle
+ *   - field_name
+ *   - entity_id
+ * @param string $disposition
+ *   for API usage of save to field:
+ *   - trigger_dl: Trigger Download
+ *   - bounce_refer: Bounce back to referring page
+ *   - pass_thru: (Default) Pass through this function w/o doing anything else.
  */
-function _pdf_using_mpdf_generator($html, $filename = NULL) {
+function _pdf_using_mpdf_generator($html, $filename = NULL, $field_data = NULL, $disposition = 'pass_thru') {
 
   ini_set('Display_errors', 'On');
   error_reporting(E_ALL);
@@ -324,6 +335,40 @@ function _pdf_using_mpdf_generator($html, $filename = NULL) {
       drupal_goto($_SERVER['HTTP_REFERER']);
       exit;
       break;
+    // Save to field and send for download.
+    case 3:
+      if (!empty($field_data) && is_array($field_data)) {
+        $entity = entity_load($field_data['entity_type'], array($field_data['entity_id']));
+        $entity = array_pop($entity);
+        $entity_wrapper = entity_metadata_wrapper($field_data['entity_type'], $entity);
+        $path = file_directory_temp() . '/' . $filename . '.pdf';
+        $mpdf->Output($path , 'F');
+
+        // Save the file in the file admin.
+        $file = file_save_data(file_get_contents($path), 'private://' . $filename . '.pdf');
+        // And set the file.
+        $entity_wrapper->{$field_data['field_name']}->file->set($file);
+        // And save the entity.
+        $entity_wrapper->save();
+
+        // Disposition: download, bounce, passthrough
+        switch ($disposition) {
+          case 'trigger_dl':
+            $mpdf->Output($filename . '.pdf', 'D');
+            break;
+
+          case 'bounce_refer':
+            drupal_goto($_SERVER['HTTP_REFERER']);
+            break;
+
+          case 'pass_thru':
+          default:
+            // Do nothing.
+            break;
+        }
+      }
+      break;
+
     case 0:
     default:
       // Open in same browser.
@@ -344,16 +389,28 @@ function _pdf_using_mpdf_generator($html, $filename = NULL) {
  * @param string $pdf_using_mpdf_pdf_filename
  *   pdf_using_mpdf_pdf_filename is Optional name of the PDF file.
  *
+ * @param array $pdf_using_field_data
+ *   pdf_using_field_data is array with the following structure:
+ *   - entity_type
+ *   - bundle
+ *   - field_name
+ *   - entity_id
+ * @param string $disposition
+ *   for API usage of save to field:
+ *   - trigger_dl: Trigger Download
+ *   - bounce_refer: Bounce back to referring page
+ *   - pass_thru: (Default) Pass through this function w/o doing anything else.
+ *
  * @return bool
  *   TRUE if PDF is successfully generated and FALSE if it isn't.
  */
-function pdf_using_mpdf_api($html, $pdf_using_mpdf_pdf_filename = NULL) {
+function pdf_using_mpdf_api($html, $pdf_using_mpdf_pdf_filename = NULL , $pdf_using_field_data = NULL, $disposition = 'pass_thru') {
   if (pdf_using_mpdf_library_exist() == TRUE) {
     if ($pdf_using_mpdf_pdf_filename === NULL) {
       $filename = explode(variable_get('pdf_using_mpdf_pdf_filename'), '[site:name]');
       $pdf_using_mpdf_pdf_filename = token_replace($filename[0]);
     }
-    _pdf_using_mpdf_generator($html, $pdf_using_mpdf_pdf_filename);
+    _pdf_using_mpdf_generator($html, $pdf_using_mpdf_pdf_filename, $pdf_using_field_data, $disposition);
   }
   else {
     drupal_set_message(t('No mPDF Library Found in "sites/all/libraries" or "!default_module_path". Please download PHP mPDF PDF generation tool from <a href="http://www.mpdf1.com/">mPDF1.com</a>', array(