Prepress, printing, PDF, PostScript, fonts and stuff…
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Now I can do some relations:
Postscrip level 3, for exemple, it is a progression in the language and PostScript level 3 RIPs mean that RIP can interpret this level of language. The way it make this interpretation, I think it is: or by CPSI (I suppose that it is a cheaper OEM tecnology, than APPE) or by APPE. I worked with Prinergy and saw Normalizer process occur in front of me all the time.
After a little research (certainly not something new for the Sr., or as we say here in Brazil: teaching the priest to pray!), CPSI v3015 had some problem with transparency, solved with flattened PDF 1.3, nowadays v3019 without thoses issues.
Mr. Laurens, please,could you explain the relation between PostScript 3, CPSI and APPE. I´ve read your texts, but I could not do a clear relation between them.
OK, let’s start with the basics:
Let me use an analogy: A PostScript file is to an MP3 file as a RIP is to a music application on your computer or the software of your MP3 player.
How do CPSI and APPE relate to PostScript:
Hope this clears things up a bit.
Thanks for your excellent article.
one question. You wrote: “PostScript can also be used to exchange data between applications themselves and it forms the basis of the PDF file format.” I am not clear about it. Could you clarify? Or can I understand in this way:if I export a PDF from indesign, and I use different PDF viewer to read it, such as Preview, Acrobat or VPS, I may get different display result because they have different RIP built in?
So eager to hear from you answer. Thanks
That latter statement unfortunately is true – depending on the viewer application you use a PDF may be displayed differently.
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