On demand apparatus for use in a printer, printer module, stand-alone media converter, or other media processor comprises a print device and a converting system. The print device receives a series of labels, tickets, tags, cards or other media samples and responds to a set of form and content print instructions which direct the print device regarding what and where to print on selected media samples. The converting system includes an applicator which receives the series of media samples from the print device and a series of value-adding elements. The applicator responds to a set of application instructions which direct the applicator to apply a value-adding element to selected media samples. A corresponding method is disclosed.