Added the Following code in .phtml file
<textarea id="presonal_message" name="presonal-message"></textarea>
<script>
require([
"jquery",
"mage/translate",
"mage/adminhtml/events",
"mage/adminhtml/wysiwyg/tiny_mce/setup"
], function(jQuery){
wysiwygcompany_description = new wysiwygSetup("presonal_message", {
"width":"99%", // defined width of editor
"height":"200px", // height of editor
"plugins":[{"name":"image"}], // for image
"tinymce4":{"toolbar":"formatselect | bold italic underline | alignleft aligncenter alignright | bullist numlist | link table charmap","plugins":"advlist autolink lists link charmap media noneditable table contextmenu paste code help table",
}
});
wysiwygcompany_description.setup("exact");
});
</script>
<textarea id="presonal_message" name="presonal-message"></textarea>
<script>
require([
"jquery",
"mage/translate",
"mage/adminhtml/events",
"mage/adminhtml/wysiwyg/tiny_mce/setup"
], function(jQuery){
wysiwygcompany_description = new wysiwygSetup("presonal_message", {
"width":"99%", // defined width of editor
"height":"200px", // height of editor
"plugins":[{"name":"image"}], // for image
"tinymce4":{"toolbar":"formatselect | bold italic underline | alignleft aligncenter alignright | bullist numlist | link table charmap","plugins":"advlist autolink lists link charmap media noneditable table contextmenu paste code help table",
}
});
wysiwygcompany_description.setup("exact");
});
</script>