diff --git a/plupload_widget.module b/plupload_widget.module
new file mode 100644
index 0000000..2796caa
--- /dev/null
+++ b/plupload_widget.module
@@ -0,0 +1,17 @@
+<?php
+
+/**
+ * Implements hook_field_info_alter().
+ */
+function plupload_widget_field_info_alter(&$info) {
+  foreach ($info as $key => &$data) {
+    if (isset($data['constraints'])) {
+      foreach ($data['constraints'] as $constraint_name => $constraint_data) {
+        if ($constraint_name == 'FileValidation') {
+          unset($data['constraints'][$constraint_name]);
+          $data['constraints']['PluploadWidgetWithoutPhpLimitsFileValidation'] = [];
+        }
+      }
+    }
+  }
+}
diff --git a/src/Plugin/Field/FieldWidget/FileWidget.php b/src/Plugin/Field/FieldWidget/FileWidget.php
index 279ff4d..2985a67 100644
--- a/src/Plugin/Field/FieldWidget/FileWidget.php
+++ b/src/Plugin/Field/FieldWidget/FileWidget.php
@@ -29,6 +29,20 @@ class FileWidget extends CoreFileWidget {

   use PluploadWidgetTrait;

+  /**
+   * {@inheritdoc}
+   */
+  function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
+    $element = parent::formElement($items, $delta, $element, $form, $form_state);
+
+    // This value is shown in widget to the user.
+    if (isset($element['#upload_validators']['FileSizeLimit']['fileLimit'])) {
+      $element['#upload_validators']['FileSizeLimit']['fileLimit'] = $this->getMaxFileSize();
+    }
+
+    return $element;
+  }
+
   /**
    * {@inheritdoc}
    */
diff --git a/src/Plugin/Validation/Constraint/WithoutPhpLimitsFileValidationConstraint.php b/src/Plugin/Validation/Constraint/WithoutPhpLimitsFileValidationConstraint.php
new file mode 100644
index 0000000..df38a52
--- /dev/null
+++ b/src/Plugin/Validation/Constraint/WithoutPhpLimitsFileValidationConstraint.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Drupal\plupload_widget\Plugin\Validation\Constraint;
+
+use Symfony\Component\Validator\Constraint;
+
+/**
+ * Checks that the submitted value is a unique integer.
+ *
+ * @Constraint(
+ *   id = "PluploadWidgetWithoutPhpLimitsFileValidation",
+ *   label = @Translation("Without PHP limits file validation constraint", context = "Validation"),
+ *   type = "string"
+ * )
+ */
+class WithoutPhpLimitsFileValidationConstraint extends Constraint {
+
+}
diff --git a/src/Plugin/Validation/Constraint/WithoutPhpLimitsFileValidationConstraintValidator.php b/src/Plugin/Validation/Constraint/WithoutPhpLimitsFileValidationConstraintValidator.php
new file mode 100644
index 0000000..f660de6
--- /dev/null
+++ b/src/Plugin/Validation/Constraint/WithoutPhpLimitsFileValidationConstraintValidator.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace Drupal\plupload_widget\Plugin\Validation\Constraint;
+
+use Drupal\Component\Utility\Bytes;
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\ConstraintValidator;
+
+/**
+ * Class WithoutPhpLimitsFileValidationConstraintValidator
+ *
+ * @package Drupal\plupload_widget\Plugin\Validation\Constraint
+ */
+class WithoutPhpLimitsFileValidationConstraintValidator extends ConstraintValidator {
+
+  /**
+   * {@inheritdoc}
+   *
+   * @see \Drupal\file\Plugin\Validation\Constraint\FileValidationConstraintValidator::validate().
+   */
+  public function validate($value, Constraint $constraint) {
+    // Get the file to execute validators.
+    $target = $value->get('entity')->getTarget();
+    if (!$target) {
+      return;
+    }
+
+    $file = $target->getValue();
+    // Get the validators.
+    $validators = $value->getUploadValidators();
+    $max_filesize = Bytes::toNumber($value->getFieldDefinition()->getSetting('max_filesize'));
+
+    if (isset($validators['FileSizeLimit']['fileLimit']) && !empty($max_filesize)) {
+      $validators['FileSizeLimit']['fileLimit'] = $max_filesize;
+    }
+
+    /** @var \Drupal\file\Validation\FileValidatorInterface $file_validator */
+    $file_validator = \Drupal::service('file.validator');
+
+    // Checks that a file meets the criteria specified by the validators.
+    if ($errors = $file_validator->validate($file, $validators)) {
+      foreach ($errors as $error) {
+        $this->context->addViolation($error);
+      }
+    }
+  }
+}