At present the PDF date format code supports 1.4-1.6 by using D:YYYYMMDDHHmmSSOHH'mm'. In 1.7 the last character/delimiter in the date string has been removed. By using the option renderer[@mime="application/pdf"]/version [1], the user can determine which PDF reference version FOP will use. The resolution will therefore modify the code so that both are supported dependant upon this config option. [1] http://xmlgraphics.apache.org/fop/trunk/configuration.html#pdf-renderer