Transfer
If you need to transmit files (pdf, audio or video) to your students, but can't do it with an email due to the limited weight for attachments, a file transfer server will allow you to handle this type of sending.
FileSender
https://filesender.renater.fr/index.php?s=home
Online presentation: https://services.renater.fr/groupware/filesender/index
You will need to authenticate yourself with your Inalco digital account, but you will then be able to send your files to whomever you wish.
Video tutorial
How-to tutorial
Wetransfer
https://wetransfer.com
Online instructions: https://wetransfer.com/help