You can check "Disable submitting text" if want to only allow file uploads, and you can check "Disable uploading files" if you want to only allow submitting text messages, like for an anonymous contact form.
U kan “Deaktiveer teksindiening” merk as u slegs lêeroplaaie wil toestaan, en u kan “Deaktiveer lêeroplaai” merk as u slegs teksboodskappe wil toelaat, soos vir ’n anonieme kontakvorm.