diff -Nuar a/vendor/magento/module-page-builder/view/adminhtml/web/js/content-type/text/preview.js b/vendor/magento/module-page-builder/view/adminhtml/web/js/content-type/text/preview.js
index 35264feb4..8f8cd6542 100644
--- a/vendor/magento/module-page-builder/view/adminhtml/web/js/content-type/text/preview.js
+++ b/vendor/magento/module-page-builder/view/adminhtml/web/js/content-type/text/preview.js
@@ -136,6 +136,8 @@ define(["jquery", "Magento_PageBuilder/js/events", "underscore", "Magento_PageBu
 
       var wysiwygConfig = this.config.additional_data.wysiwygConfig.wysiwygConfigData;
 
+      wysiwygConfig.adapter.settings.paste_as_text = true;
+
       if (focus) {
         wysiwygConfig.adapter.settings.auto_focus = this.element.id;
 
diff -Nuar a/vendor/magento/module-page-builder/view/adminhtml/web/ts/js/content-type/text/preview.ts b/vendor/magento/module-page-builder/view/adminhtml/web/ts/js/content-type/text/preview.ts
index 6c33f1e3e..245020af0 100644
--- a/vendor/magento/module-page-builder/view/adminhtml/web/ts/js/content-type/text/preview.ts
+++ b/vendor/magento/module-page-builder/view/adminhtml/web/ts/js/content-type/text/preview.ts
@@ -149,6 +149,8 @@ export default class Preview extends BasePreview {
 
         const wysiwygConfig = this.config.additional_data.wysiwygConfig.wysiwygConfigData;
 
+        wysiwygConfig.adapter.settings.paste_as_text = true;
+
         if (focus) {
             wysiwygConfig.adapter.settings.auto_focus = this.element.id;
             wysiwygConfig.adapter.settings.init_instance_callback = () => {