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*IPDS - Intelligent Printer Data Stream. It is a more complex type of data stream that can merge different types of data together at printing time to have an integrated page. Examples of the different types of data include text, raster images, bar codes, and graphics. This type of data stream also supports two-way communication between the printer driver and the printer, which provides for improved exception messaging. It supports the Data Description Specification (DDS) keywords.

*AFPDS - Advanced Function Printing Data Stream. It is a more structured data stream that is divided into components called objects. It can be used for text, images, graphics, bar codes, and AFP resources like page segments, overlays, fonts, form definitions, and page definitions. It supports the Data Description Specification (DDS) keywords.