If I have a Resume category, can I have a field where they can upload a PDF file?
Short of that, a text field would have to be too big for the rest of the categories.

Dear Customer,

Sorry, the file upload feature is not available in Jomclassifieds. Regarding the text field size, kindly mail your site URL, FTP details and Joomla admin details (Please mention the exact size that you need) to This email address is being protected from spambots. You need JavaScript enabled to view it. . So that we can change it for you.

Thanks.