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[colorblind]

Here's a weird one guys, prepared an ad for newspaper (CMYK) and supplied a final trapped PDFX1a with no densities exceeding 158%. Needed trapping because I had 41 pts black text overlapping white and 50c 8m tint area, so instead of leaving my text K overprinting, I colored it 50c 8m 100k. Check the ad in the paper and see strong yellow where there shouldn't be any (it should have been K only, 50c and 8m chocking underneath). Call the paper, they tell me I had spot colors according to Pitstop. Knowing this was odd, I check my PDF in output preview: cmyk only. Place the PDF in InDesign separation preview, same thing. Run an Acrobat preflight profile "Document generate more than 4 plates" everything is OK. Send it to my old Harlequin rip and Roam: everything separates as expected. Then I try Pitstop, select my trapping area with inspector and it tells me it's got 3 spot plates, 0% C, 0% M and 0% Y. So that's what happened, every zone that Pitstop mistakenly designated as spot got manually or automatically converted to CMYK, adding that unwanted yellow (and stronger magenta than expected for that matter). If anyone has an idea why Pitstop is behaving differently than other Adobe applications and an old rip when it comes to see how many plates a PDF actually has, your opinion is welcome. I also attach screen captures. My PDF is generated by ApogeeX 3.5. Thanks to all.