diff --git a/Form/Type/AcbFileType.php b/Form/Type/AcbFileType.php
index 2c79360..24b7fde 100644
--- a/Form/Type/AcbFileType.php
+++ b/Form/Type/AcbFileType.php
@@ -65,6 +65,10 @@ public function buildForm(FormBuilderInterface $builder, array $options)
                 'label' => 'field_type.file.restriction_type',
                 'multiple' => true,
                 'choices' => is_array($mimeTypeChoices) ? $mimeTypeChoices : [],
+                'choice_attr' => function ($choice): array {
+                    return ['data-mime-type' => json_encode($this->mimeTypeManager->getMimeTypesByCode($choice))];
+                },
+                'attr' => ['data-mime-type-restriction' => '']
             ])
         ;
 
@@ -160,6 +164,7 @@ private function updateForm(FormInterface $form, $data, $options, $hasFile = fal
                 'label' => 'field_type.file.file',
                 'required' => !$isFileUploaded && $options['required'],
                 'constraints' => $options['file_constraints'],
+                'attr' => ['data-mime-type-restriction' => '']
             ])
         ;
 
diff --git a/Resources/js/index.js b/Resources/js/index.js
index aec639e..40ebc31 100644
--- a/Resources/js/index.js
+++ b/Resources/js/index.js
@@ -247,6 +247,56 @@ jQuery(function ($) {
     slide.element.on('slideContentUpdated', updateControls);
     slide.element.on('change', '.simplify-controls', updateControls);
 
+    $('body').on('change', '[data-mime-type-restriction]', function (e) {
+        let inputFile = $(this).closest('.acb-widget-container').find('input[type=file]');
+        let errorMessage = $(this).closest('.acb-widget-container').find('.invalid-feedback');
+
+        if (!inputFile.length) {
+            return;
+        }
+
+        inputFile = inputFile[0];
+
+        if (!inputFile.files.length) {
+            errorMessage.removeClass('d-block').addClass('d-none');
+
+            return;
+        }
+
+        let mimeTypeOption = $(this).closest('.acb-widget-container').find('[data-mime-type-restriction-values]').find(':checked');
+
+        if (!mimeTypeOption.length) {
+            return;
+        }
+
+
+        let mimeTypeValues = [];
+        mimeTypeOption.each(function() {
+            $(this).data('mime-type').forEach((element) => mimeTypeValues.push(element));
+        });
+
+        let allImageType = mimeTypeValues.length === 1 && mimeTypeValues[0] === 'image/*';
+        let hasError = true;
+
+        if (allImageType && inputFile.files[0].type.includes('image/')) {
+            hasError = false;
+        } else if (mimeTypeValues.includes(inputFile.files[0].type)) {
+            hasError = false;
+        }
+
+        if (hasError) {
+            let msg = errorMessage.data('error');
+
+            mimeTypeValues = mimeTypeValues.map(type => `"${type}"`);
+            msg = msg.replace('%mime%', inputFile.files[0].type).replace('%allowed_mime%', mimeTypeValues.join(', '));
+
+            errorMessage.html(msg);
+            errorMessage.removeClass('d-none').addClass('d-block');
+        } else {
+            errorMessage.removeClass('d-block').addClass('d-none');
+        }
+    });
+
   function updateRowAfterLayoutUpdate(row) {
     saveExistingField(
       $('.acb-elements-container').data('edit-url') + '?type=row',
diff --git a/Resources/translations/AdvancedContentBundle.en.yml b/Resources/translations/AdvancedContentBundle.en.yml
index 9dad42a..bf38064 100644
--- a/Resources/translations/AdvancedContentBundle.en.yml
+++ b/Resources/translations/AdvancedContentBundle.en.yml
@@ -41,6 +41,7 @@ field_type:
         file: File
         label: File
         restriction_type: File type restriction
+        restriction_type_error: The mime type of the file is invalid ("%mime%"). Allowed mime types are %allowed_mime%.
     relative_link:
         label: Relative Link
     separator:
diff --git a/Resources/translations/AdvancedContentBundle.fr.yml b/Resources/translations/AdvancedContentBundle.fr.yml
index 186ffa0..55754e5 100644
--- a/Resources/translations/AdvancedContentBundle.fr.yml
+++ b/Resources/translations/AdvancedContentBundle.fr.yml
@@ -41,6 +41,7 @@ field_type:
         file: Fichier
         label: Fichier
         restriction_type: Restriction du type de fichier
+        restriction_type_error: Le type du fichier est invalide ("%mime%"). Les types autorisés sont %allowed_mime%.
     relative_link:
         label: Lien relatif
     separator:
diff --git a/Resources/views/Form/content.html.twig b/Resources/views/Form/content.html.twig
index f067b30..1644709 100644
--- a/Resources/views/Form/content.html.twig
+++ b/Resources/views/Form/content.html.twig
@@ -181,85 +181,91 @@
 {% endblock %}
 
 {% block acb_image_widget %}
-<div {{ block('widget_container_attributes') }}>
-    {{ form_row(form.file) }}
-
-    {% set source = '' %}
-    {% if form.vars.src is not empty %}
-        {% set source = uploadManager.webPath ~ '/' ~ form.vars.src %}
-    {% endif %}
-    {% if source != '' %}
-        <div class="form-group">
-            <a href="{{ asset(source) }}">
-                <img src="{{ asset(source) }}" height="50px" alt="image">
-            </a>
+    {%- set attr = attr|merge({ class: attr.class|default('acb-widget-container') }) -%}
+    <div {{ block('widget_container_attributes') }}>
+        <div class="mb-3">
+            {{ form_row(form.file) }}
+            <div class="invalid-feedback d-none" data-error="{{ 'field_type.file.restriction_type_error'|trans }}"></div>
         </div>
-    {% endif %}
 
-    {% if form.delete is defined %}
-        {{ form_row(form.delete) }}
-    {% endif %}
-    {% if form.src is defined %}
-        {{ form_row(form.src) }}
-    {% endif %}
+        {% set source = '' %}
+        {% if form.vars.src is not empty %}
+            {% set source = uploadManager.webPath ~ '/' ~ form.vars.src %}
+        {% endif %}
+        {% if source != '' %}
+            <div class="form-group">
+                <a href="{{ asset(source) }}">
+                    <img src="{{ asset(source) }}" height="50px" alt="image">
+                </a>
+            </div>
+        {% endif %}
 
-    {{ form_row(form.alt) }}
-    {% if form.mime_type is defined %}
-        {% import "@SherlockodeAdvancedContent/Common/Macros/collapse.html.twig" as macro %}
+        {% if form.delete is defined %}
+            {{ form_row(form.delete) }}
+        {% endif %}
+        {% if form.src is defined %}
+            {{ form_row(form.src) }}
+        {% endif %}
 
-        {% set content %}
-            {{ form_widget(form.mime_type) }}
-            {{ form_help(form.mime_type) }}
-            {{ form_errors(form.mime_type) }}
-        {% endset %}
+        {{ form_row(form.alt) }}
+        {% if form.mime_type is defined %}
+            {% import "@SherlockodeAdvancedContent/Common/Macros/collapse.html.twig" as macro %}
 
-        {% set data = [{'title': form_label(form.mime_type), 'content': content }] %}
+            {% set content %}
+                {{ form_widget(form.mime_type, {'attr': {'data-mime-type-restriction-values': ''}}) }}
+                {{ form_help(form.mime_type) }}
+                {{ form_errors(form.mime_type) }}
+            {% endset %}
 
-        {{ macro.buildAccordion(data) }}
-    {% endif %}
-    {{ form_rest(form) }}
-</div>
+            {% set data = [{'title': form_label(form.mime_type), 'content': content }] %}
+            {{ macro.buildAccordion(data) }}
+        {% endif %}
+        {{ form_rest(form) }}
+    </div>
 {% endblock %}
 
 {% block acb_file_widget %}
-<div {{ block('widget_container_attributes') }}>
-    {{ form_row(form.file) }}
-
-    {% set source = '' %}
-    {% if form.vars.src is not empty %}
-        {% set source = uploadManager.webPath ~ '/' ~ form.vars.src %}
-    {% endif %}
-    {% if source != '' %}
-        <div class="form-group">
-            <a href="{{ asset(source) }}" download>
-                {{ form.vars.src }}
-            </a>
+    {%- set attr = attr|merge({ class: attr.class|default('acb-widget-container') }) -%}
+    <div {{ block('widget_container_attributes') }}>
+        <div class="mb-3">
+            {{ form_row(form.file) }}
+            <div class="invalid-feedback d-none" data-error="{{ 'field_type.file.restriction_type_error'|trans }}"></div>
         </div>
-    {% endif %}
 
-    {% if form.delete is defined %}
-        {{ form_row(form.delete) }}
-    {% endif %}
-    {% if form.src is defined %}
-        {{ form_row(form.src) }}
-    {% endif %}
+        {% set source = '' %}
+        {% if form.vars.src is not empty %}
+            {% set source = uploadManager.webPath ~ '/' ~ form.vars.src %}
+        {% endif %}
+        {% if source != '' %}
+            <div class="form-group">
+                <a href="{{ asset(source) }}" download>
+                    {{ form.vars.src }}
+                </a>
+            </div>
+        {% endif %}
 
-    {{ form_row(form.title) }}
-    {% if form.mime_type is defined %}
-        {% import "@SherlockodeAdvancedContent/Common/Macros/collapse.html.twig" as macro %}
+        {% if form.delete is defined %}
+            {{ form_row(form.delete) }}
+        {% endif %}
+        {% if form.src is defined %}
+            {{ form_row(form.src) }}
+        {% endif %}
 
-        {% set content %}
-            {{ form_widget(form.mime_type) }}
-            {{ form_help(form.mime_type) }}
-            {{ form_errors(form.mime_type) }}
-        {% endset %}
+        {{ form_row(form.title) }}
+        {% if form.mime_type is defined %}
+            {% import "@SherlockodeAdvancedContent/Common/Macros/collapse.html.twig" as macro %}
 
-        {% set data = [{'title': form_label(form.mime_type), 'content': content }] %}
+            {% set content %}
+                {{ form_widget(form.mime_type, {'attr': {'data-mime-type-restriction-values': ''}}) }}
+                {{ form_help(form.mime_type) }}
+                {{ form_errors(form.mime_type) }}
+            {% endset %}
 
-        {{ macro.buildAccordion(data) }}
-    {% endif %}
-    {{ form_rest(form) }}
-</div>
+            {% set data = [{'title': form_label(form.mime_type), 'content': content }] %}
+            {{ macro.buildAccordion(data) }}
+        {% endif %}
+        {{ form_rest(form) }}
+    </div>
 {% endblock %}
 
 {% block acb_column_config_row %}