Windows Acrobat/PitStop overprint preview issue

[destryer]

We are having an issue with the overprint preview in Windows not correctly displaying when the color of "black" type is 0C 0M 0Y 100K. Attached is a screenshot of the effect with the black channel turned off. The color warnings "overprint" also indicates that the type is indeed overprinting.

[zoran]

Can you post actual PDF?

[mattbeals]

Which version of Acrobat, Windows and PitStop? As Zoran said, can you post the PDF or at least this part of it.

[Joe]

So, do you have overprint preview turned on?

[destryer]

Here's a section of the PDF showing the same section as the screencap. I'm interested if this is a Windows/PC Acrobat issue or PitStop issue or some combination thereof. We use WindowsXP, Acrobat 8 and PitStop 9 on our PCs. I have OSX 10.5, Acrobat 9 and PitStop 9 on my Mac and it displays correctly. I can't find a PC that displays it correctly UNLESS I run a PitStop action to convert solid black to gray then run an action to overprint the text.

[gig0]

I can confirm Acrobat 9 on my PC displays it as overprinting. Acrobat 8 on another PC shows it as knocking out. Overprint preview is active on both machines.

[destryer]

Thanks for checking, we have seen this is an Acrobat 8 preview issue not a PC OS issue since it happens on both the Mac and PC in Acrobat 8.

[mattbeals]

In my version of Acrobat (9) and PitStop the black text is set to knock out...

[gig0]

yeah, thats the bold type knocking out. Check out the line of type underneath the price thats set to overprint. Even Acrobat 7 shows it overprinting in separations mode, but not 8 for some reason.

[Robban]

I have Acrobat 9, PitStop 9 and Win 7, the pdf looks correct.