<?xml version="1.0" encoding="utf-8"?>
<form>
    <fieldset name="main" addfieldpath="plugins/convertformstools/pdf/fields">
		<fields name="pdf">
            <field name="pdf" type="pdfsubmission" 
                label="PLG_CONVERTFORMSTOOLS_PDF_SUBMISSION"
            />
        </fields>
    </fieldset>
</form>