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Originally Posted by Fluid |  | | | | | | | | | Fred, PS was short hand for Photoshop not Postscript | |  | |  | |
In this context, it is indistinguishable. Photoshop and illustrator are both built upon postscript foundations. Both programs include a full postscript interpreter.
Adobe illustrator is to postscript, what cobol was to assembler language. Each drawing command in the original illustrator had a 1:1 correspondence to the postscript language.
The screen button in photoshop has a 1:1 correspondence to the postscript transfer function.
When you convert an image to a halftone in photoshop, it will follow all of the postscript rules. Type in 75 degrees and measure what it produces. I'll bet $1 it isn't 75 degrees.
fred