Efficient imposition of arbitrary postscript files without preprocessing
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United States of America Patent
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-
Jan 16, 2001
Grant Date -
N/A
app pub date -
Apr 14, 1998
filing date -
Apr 2, 1996
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Pages described in a PostScript.RTM. file are interpreted by an interpreter and imposed and rendered on a flat by a raster output device. The PostScript.RTM. showpage operator is redefined (by redefining the EndPage and BeginPage procedures) to select the pages from the PostScript.RTM. file to be rendered on the flat and to properly position the selected pages on the flat. Non-selected pages in the PostScript.RTM. file (which will not be rendered on the flat) are interpreted by specifying the raster output device as a 'pseudo null device,' which dictates that all graphics and font information from the non-selected pages will be processed without effectively transmitting the non-selected pages to a raster memory for rendering.
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