Thread:Ark2Admin/@comment-26339491-20170409132045/@comment-26339491-20170417195350

It's not possible, unfortunately, to give the right to upload PDFs only to one specific user - if you can, then others can, too, and may abuse that function. We don't have the capacity to check uploaded PDFs for terms of use violations, while we do have checks in place for text and images that are added to wikis. Please do use text and images or videos instead of PDFs if possible.

You can remove or correct a category on a page just like you would edit any other information on that page. This page may help: Help:Categories