Allows you to check if the PDF document contains pages that already have been separated.
A pre-separated PDF contains pages that have been separated into their CMYK components. In offset printing each of these colors is printed with a separate plate. This means that each page in a PDF document is separated into its four constituent colors: cyan, magenta, yellow and black. For example, a pre-separated PDF file for a two-page CMYK print job, results in a PDF file with 8 pages.
This separation process is usually carried out by the RIP, and not in the source PDF document.
No automatic fix provided. Problems will have to be fixed in the source application.