[Framers] Overprint Not Working in FrameMaker 10 and Acrobat Pro 2017

[Mike Wickham]

Man, I am cursed in this thread. The third link the message below, 
should be http://mikewickham.com/misc/3.gif 
<http://mikewickham.com/misc/3.gif>. I left out the misc in the link. D'oh!

Mike Wickham

On 4/15/2021 1:11 PM, Mike Wickham wrote:
> I set all four colors (CMYK) to process and overprint. Using Save as 
> PDF (not print to Adobe PDF).
>
> Below, you can see the PDF with all four plates turned on in Output 
> Preview. It is easy to see that yellow is overprinting. It turns green 
> on top of cyan, and  easy to see that black is, too-- although not so 
> much in this GIF. The black is darker over the cyan, wit the "E" 
> showing in two colors, as expected with overprinting. The cyan and 
> magenta plates, though, are not correctly overprinting and have 
> letters of unchanged color where they are supposed to overprint:
>
> CMYK <http://mikewickham.com/misc/1.gif>
>
> Below is the PDF with the black and yellow plates turned off. You can 
> see that they were overprinted. The full cyan plate remains:
>
> CM plates only <http://mikewickham.com/misc/2.gif>
>
> Below is the image with the magenta plate turned off. You can see that 
> it knocks out the cyan plate, even though all colors are set to 
> overprint:
>
> CYK only <http://mikewickham.com/3.gif>
>
> And below is the cyan plate turned off. It knocks out the yellow 
> plate, even though all colors are set to overprint:
>
> MYK only <http://mikewickham.com/misc/4.gif>
>
> So there is definitely some error in the process. Overprinting works 
> with black and yellow plates, but not cyan and magenta. The Object 
> Inspector in Acrobat works similarly to your Quite Revealing. It 
> accurately shows what the PDF presents, i.e. overprint=true for black 
> and yellow, but false for cyan and magenta. I confirmed this by 
> printing to a Xerox Phaser CMYK printer to be sure it wasn't a display 
> artifact.
>
> I cannot figure out why overprints are only flowing to the PDF for two 
> of the four plates! All four color definitions are set to Process 
> Overprint in FrameMaker.
>
> Mike Wickham