Transforms

Different document formats use different transforms. Different transforms behave differently when making temporary work copies:

AFPDS
Since the file is already AFPDS, there are no transforms needed. When the job is scheduled to the actual destination, the Input Manager segments the AFP file, creating the segment list in /var/psf/seglist and the segments themselves in /var/psf/segments.
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When a line data job to be formatted with a page definition is scheduled to the actual destination, ACIF does not make another temporary copy in a work area of its own; rather, ACIF works with Input Manager to build the seglist in /var/psf/seglist and the AFP segments directly into /var/psf/segments.
PostScript
The Postscript transform pipes the source file to its work area (by default, /var/psf/ps2afp or /var/psf/ps2afp2, which is user-customizable in the daemon configuration files). This means that the Postscript transform can process files larger than its work area. The output of the Postscript transform is piped to Input Manager, which segments the AFP data, and creates segments in /var/psf/segments, with the segment list file in /var/psf/seglist.
PDF
The PDF transform is similar to the Postscript transform, except that the whole PDF file must be copied to the transform's work area (by default, /var/psf/appe, /var/psf/ps2afp, or /var/psf/ps2afp2, which is user-customizable in the daemon confi