Sometimes you have one PDF file, but you really need two. A good example would be a PDF file which contains elements for print, but also a cut contour that will be used for digital cutting in a label or packaging workflow.
callas pdfToolbox offers functionality called "slice", which allows you to define a preflight check, and then uses this check to separate one PDF file into two files. This concept, how to use it and how to automate it, is discussed in this short video.
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