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Hi Rich

Let me take that back. I worked with Agfa Apogee System that is a PDF based
system and in it is the process called "Normalize". This is similar to the
distilling process, but it have the ability to recognize bleeds. Once again
it is not only Adobe's technology but Agfa's also.

How can these Applications detect a bleed?


These Apps are PostScript Interpreters and get a Mediasize (or Bounding Box), content and coordiantes for the content. The content can now be inside the Box or Outside.

If e.g you print from Xpress with a positioned EPS-image (that starts 10mm outside of the document) and print using a paperformat with the same size as the document format, you will see the image with no bleed in the PDF.

The Trick to get to the bleed is to enlarge the Mediasize, select the image and delete the clip using the Touchup Tool.


But this does not work with TIFF-files. They will already be cut off from Quark during the printing process. It only worked with Apoge's Normalizer because you had to enter a bleed-amount in the printer dialog and set the pagesize to centered. But if yo had not entered a bleed-amount, you would not have seen anything in the resulting PDF.


So it is completely up to the Application that generates the PS-Code (and how it handles objects, cut the off or mask them off).

Bleed on the other hand is just something for output on paper with elements that are along the edges of a printed paper that gets cut and could leave a white boarder. And if you need bleed in the PDf is has to come from the Layout Application. And if there is noting you need to request a new PDF

Peter


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