PrintTalk is an XML standard that is maintained by CIP4 and provides a single format for Print Providers to collaboratively
communicate Business Transactions and specifications of Print Products both with their Print Buyers and among
themselves. Print industry professionals from a wide range of organizations contributed to the design of PrintTalk. Such
organizations include eCommerce companies, print business management systems, print providers, and print equipment
The PrintTalk standard embraces [XJDF 2.1] and [cXML 1.2]. These bracketed references are defined in Appendix
A References. Whereas XJDF describes the printed product to be produced, PrintTalk specifies the business data and context
between the Print Provider and Print Buyer.
PrintTalk 2.1 is a minor update of PrintTalk and is backwards compatible with PrintTalk 2.0. Thus any valid PrintTalk 2.0 document is also a valid PrintTalk 2.1 document. PrintTalk 2.1 adds some additional functionality and clarifications to PrintTalk 2.0. The major difference is that the referenced XJDF standard has been updated from ##Ref XJDF 2.0 to ##ref XJDF 2.1. Since XJDF follows the same policy of backwards compatibility as PrintTalk 2.0, i.e. any valid XJDF 2.0 is also a valid XJDF 2.1, XJDF 2.0 elements MAY be provided in PrintTalk 2.1.
1.2.1 Use of XML namespaces
A PrintTalk implementation SHALL support standard namespace handling as defined in [XMLNS].
The PrintTalk namespace shall be declared in the PrintTalk element using the standard @xmlns attribute. For version 2.1
of PrintTalk the value SHALL be "http://www.printtalk.org/schema_20". Note: It is anticipated that the value of the PrintTalk namespace will remain constant for all future versions of PrintTalk 2. This reflects the backwards compatibility of major versions of PrintTalk.