diff --git a/google_vision.module b/google_vision.module
index 3d722fa..bc854ec 100644
--- a/google_vision.module
+++ b/google_vision.module
@@ -31,6 +31,10 @@ function google_vision_entity_presave(EntityInterface $entity) {
             google_vision_file_entity_add_labels($entity, $field, $vid);
           }
         }
+        // If this field is the alt text field.
+        if ($field->getName() == 'field_image_alt_text') {
+          google_vision_set_alt_text($entity, $field);
+        }
       }
     }
   }
@@ -69,9 +73,31 @@ function google_vision_form_field_config_edit_form_alter(&$form, \Drupal\Core\Fo
       '#default_value' => !empty($settings['emotion_detect']) ? $settings['emotion_detect'] : FALSE,
     ];
 
-
     $form['#entity_builders'][] = 'google_vision_form_field_config_form_image_builder';
   }
+
+  if ($field_entity->getName() == 'field_image_alt_text') {
+    $settings = $form_state->getFormObject()->getEntity()->getThirdPartySettings('google_vision');
+    $form['fill_alt'] = [
+      '#type' => 'details',
+      '#title' => t('Fill Alt Text by'),
+      '#open' => TRUE,
+    ];
+    $form['fill_alt']['features'] = [
+      '#type' => 'radios',
+      '#title' => t('Features'),
+      '#title_display' => 'invisible',
+      '#options' => [
+        'labels' => t('Label Detection'),
+        'landmark' => t('Landmark Detection'),
+        'logo' => t('Logo Detection'),
+        'ocr' => t('Optical Character Detection'),
+      ],
+      '#default_value' => !empty($settings['features']) ? $settings['features'] : FALSE,
+    ];
+
+    $form['#entity_builders'][] = 'google_vision_form_field_config_form_alt_text_builder';
+  }
 }
 
 /**
@@ -102,6 +128,12 @@ function google_vision_form_field_config_form_image_builder($entity_type, FieldC
 }
 
 /**
+ * Form builder to save the settings for the alt text of image file.
+ */
+function google_vision_form_field_config_form_alt_text_builder($entity_type, FieldConfigInterface $type, &$form, FormStateInterface $form_state) {
+  $type->setThirdPartySetting('google_vision', 'features', $form_state->getValue('features'));
+}
+/**
  * Try to get and add labels for the file entity.
  */
 function google_vision_file_entity_add_labels($file, $field, $vid) {
@@ -159,3 +191,66 @@ function google_vision_file_entity_add_labels($file, $field, $vid) {
     }
   }
 }
+
+/**
+ * Set the value for the alternative text field of the image file.
+ */
+function google_vision_set_alt_text($entity, $field) {
+  $settings = $field->getThirdPartySettings('google_vision');
+  if (!empty($settings['features'])) {
+    $option = $settings['features'];
+    switch ($option) {
+      case 'labels':
+        $file_uri = $entity->getFileUri();
+        if ($filepath = \Drupal::service('file_system')->realpath($file_uri)) {
+          $data = \Drupal::service('google_vision.api')->labelDetection($filepath);
+          // If we have retrieved labels.
+          if (!empty($data['responses'][0]['labelAnnotations'])) {
+            foreach ($data['responses'][0]['labelAnnotations'] as $item) {
+              $output = $item['description'];
+            }
+          }
+        }
+        break;
+      case 'landmark':
+        $file_uri = $entity->getFileUri();
+        if ($filepath = \Drupal::service('file_system')->realpath($file_uri)) {
+          $data = \Drupal::service('google_vision.api')->landmarkDetection($filepath);
+          // If we have retrieved landmark.
+          if (!empty($data['responses'][0]['landmarkAnnotations'])) {
+            foreach ($data['responses'][0]['landmarkAnnotations'] as $item) {
+              $output = $item['description'];
+            }
+          }
+        }
+      break;
+
+    case 'logo':
+        $file_uri = $entity->getFileUri();
+        if ($filepath = \Drupal::service('file_system')->realpath($file_uri)) {
+          $data = \Drupal::service('google_vision.api')->logoDetection($filepath);
+          // If we have retrieved landmark.
+          if (!empty($data['responses'][0]['logoAnnotations'])) {
+            foreach ($data['responses'][0]['logoAnnotations'] as $item) {
+              $output = $item['description'];
+            }
+          }
+        }
+      break;
+
+    case 'ocr':
+        $file_uri = $entity->getFileUri();
+        if ($filepath = \Drupal::service('file_system')->realpath($file_uri)) {
+          $data = \Drupal::service('google_vision.api')->opticalCharacterRecognition($filepath);
+          // If we have retrieved landmark.
+          if (!empty($data['responses'][0]['textAnnotations'])) {
+            foreach ($data['responses'][0]['textAnnotations'] as $item) {
+              $output = $item['description'];
+            }
+          }
+        }
+      break;
+    }
+    $entity->set('field_image_alt_text', $output);
+  }
+}