The Composite Document Print Utility (CDPU)

GDDM V3R2 General Information

The Composite Document Print Utility (CDPU)

GDDM V3R2 General Information
GC33-0866-03

A composite document contains any combination of formatted text, graphics, and images. For example, a LIST3820 file in the VM environment is a composite document.

A composite document can be in one of two formats:

Advanced Function Printing Data Stream (AFPDS)
Composite Document Presentation Data Stream (CDPDS)

GDDM's CDPU displays and prints composite documents.

When a composite document is displayed (in CDPU's "browse" mode), what is displayed on the screen approximates to the printed version of the document, but is not an exact representation. For example, text in different fonts is shown in different colors; an image might be displayed in detail or represented as an outline box; bar codes are shown as "icons"; and a complete document or page segment is scaled to fit the display screen (maintaining the aspect ratio).

Documents printed via the CDPU can be directed to any printer that supports printing of composite documents. Such printers are identified in Table 9 in topic 6.3.5. They include Intelligent Printer Data Stream (IPDS) printers, and advanced-function printers, such as the IBM 3820 and 3900. Composite documents can also be printed via the Print Services Facility (PSF). (This feature is most useful for files submitted to the CDPU in CDPDS format rather than AFPDS format, which can be submitted direct to PSF.)

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