Unable to attach PDF or other Files

Hi. Why im no longer able to attach a pdf? So i have to type all kind of filetype in the code, when i want to allow them all? We need it as a request form and for that the clients are sending a lot of different forms. Would be easier, if we can add “all” or just accept everything like it was before, if there is no specification on it.

“filetypes:pdf|doc|docx

Thank you for your reply.