size limit

At a loss and any input would be gratefully received. We used to be able to add attachments up to 200 mb but can no longer get anything bigger than 100mb to upload. It's came to light yesterday that a now ex admin changed a setting/permission some time back to 100mb and from this point we have...

We have been looking into how to allow PDF uploads (with a maximum size of say 50 MB). Preferably, we would want to attach the PDFs, rather than, embed them. Currently, when users of our forum press "attach", and chose a PDF, it looks like it uploads, but, when they post their message, the...