Frontend Submissions is an add-on that turns Easy Digital Downloads powered WordPress website into a complete multi-vendor marketplace. Based on your marketplace, you may need to restrict the certain file type uploads or allow specific file types upload only for your vendors.
I am sharing a code snippet that I just have written, and implemented on one of my client’s EDD FES website. Inserting it into WordPress theme’s functions.php will restrict vendors to upload any other file types and allow only zip file type upload.
Have you any better solutions? I would love to read your comments.
Please note: These tutorials are meant to be helpful, but please note that I can not and will not be able to help with any implementations or modifications.
tl;dr If you do not understand it, hire me to do it.