Question regarding the uploading of .pdf files on TN

From here:

https://www.trucknetuk.com/phpBB/posting.php?mode=edit&f=35&p=2800173

Mk.IV:
I’ve tried a couple times to upload 3 X pdf files as part of the Tillings story but am getting a message saying “The extension pdf is not allowed”.
Can the moderator or administrator offer advise please?

Thank you. Mk.IV

This is a feedback question, so I’ve copied the content of the post to this forum so that those wiser than I may be able to offer some kind of reasoning for how it is that .pdf files can’t be uploaded.

For now, all I can say is that there is a list of file extensions that the forum software won’t allow to be uploaded.