As we can use multilingual transaltion workflow and translation.xml file for transaltion of our asset's tag or metadata in language we want. but what if have a text over a image and a pdf ,how we can translate these assets? suppose we need to same pdf file in spanish for spanish assets and in english for english copy? can smart translator can translate it using sensei or just need to upload already translated assets in folders for each langage and the use translation workflows to translate the metadata??