Hi, new to the forum but thought I'd just add to Rabari's original comment. I've just completed a 300 page book of mixed images and 80K odd words and in dealing with a printer have come across this horrible bug which I now see has come up time and time again in different postings. I'm working in a CMYK colour format - as that's what I knew the printers would want from the outset - but when I try to export to a PDF/X-4 PDF the black comes back as a CMYK mix rather than 100K.
I know this problem is all over the forum as I thought "No worries, there'll be a quick fix solution", but there seems there isn't! Like Rabari (and various others) it looks like I'll have to manually go through every single page of text, stand alone text box, caption, header, footer, page number, etc, and manually change to 100K.
Various fixes have been posted but none of the ones I've seen solve the problem, as most seem to discuss losing the 100K black at some point during a conversion to PDF. My problem is that I didn't have 100K black from the start, as the CMYK default gives you that CMYK mix to begin with.
It would be nice if some one could say "Oh, that's easy, you solve it like this................." but my guess is there is no solution?
Any help appreciated