Auto insert user vB sig in photo description text box

[mjm]

Is there any way that a users (vB forums) signature can automatically appear at the bottom of their showphoto description box at photo submit?

We aren't using the photo commenting system, therefore the only text provided is during upload. - description text box.
However to show a sig requires having to manually enter it with each upload, an added task for everyone.

Please PM me if requires custom work.

Thanks,
Mark