I've asked a similar question in the past but still experience the same problems when converting files to PDF.
The 'mast head' is a monotone bitmap filled with PANTONE 032. When I attempt to create a pdf using the settings above (convert all colours to greyscale and leave spot colours alone) I get the rather strange appearance of the PDF with the unusal spot plates of Blue, Green and Red?
I need to create 2 plates ultimately as these magazines are printed in black only with spot colour (032) on the front page only and I'm struggling with the results I'm getting.
Any ideas?
Cheers in advance
John
Hi John.Seems to work as expected here, without RGB plates.Looks to me as if the bitmap has two colors, the red and something more.Can you post or upload a zipped CDR with the bitmap (or entire file)?
Think the mast head logo is coming in as RGB rather than monotone? If I place the logo into a page on its own all works fine? There's some kind of reaction to the other elements in the page
The settings I used are: PDF/X-3 and initial preset, then edit it and change "compatibility" to Acrobat 9.0. And then changed the output as grayscale under Color tab in order to follow your settings.
I see you've also changed the simulation profile in the output preview?
jaypeegolf said:I see you've also changed the simulation profile in the output preview?
if you output as a grayscale, you should use the same color profile to view the result.
Ariel, thank you for all of your time in attempting to solve my problem. I think we may well be there now! Your help is much appreciated.
Good morning!You have been doing a good job while I was away doing other things and sleeping. :-)Looks like you have found the cause, Ariel.Interesting, and I can confirm your findings.When Publishing the PDF from Draw and selecting the Grayscale option, the embedded color profile automatically changes to be "Dot Gain 15%".But for some reason this will not be the default Simulation Profile when doing Output Preview in Acrobat.One would have thought that Acrobat should use the embedded profile but instead it seems to use Acrobat's default color profile.
Thanks also for your comments and thoughts Ronny. Much appreciated.