Black Shadow over Spot Color

[Jeff_S]

I have a 2 color job that we are trying to print via our fiery RIP to our color printer. The black drop shadow, which is set to multiply, that goes over the spot color, is converting the area behind it from spot to 4C which is lighter than the spot color. When I make a PDF, the area behind the text boxes is white

Raster/Vector balance is set at 100
Line art/ Text res is 2400 ppi
Gradient and Mesh res is 300ppi
The shadow is set to multiply

This has been an ongoing problem that I can't solve without converting the spot to 4C. That isn't an option.
javascript:emoticon(':evil:')

[LoganBlade]

not great at indesign stil in infancy of usage...but Maybe make the drop shadow a seperate file in photoshop and grayscale then place behind the picture it belong and print ok?? drop shadows made in most progeams I have seen always seperate to 4c why not sure but I am sure someday it will be fixed.

Wish I could offer more

[TimS]

Or, if it's possible, put the drop shadow on the bottom, underneath the pantone object, and set the pantone object to overprint.

[pmkprog]

I would try to send with "IN RIP" separations. I think this has worked for me in the past.

[bigdog3580]

What we do is change the pantone to a process color(which you already know, I guess). Make sure there is no black in the Pantone color you choose. Make the spot like 100% Cyan or something. Then for proofing only we make an extra file, change everything to process and rip. This works I know for the Brisque and on the Agfa. This is the only way I know that works. We have all tried everything on these problems. Worked on them for hours. Sorry, if it doesn't help you, maybe it wll help someone else.

[coley]

Postscript job with seperations on. This will make the shadow overprint.
The only draw back is that if you have a composite pdf workflow such ,
as Prinergy, it can't be trapped using Prinergy Trapping. Unless you can
turn that seperated PDF back to a composite PDF.

[TimS]

Somebody should send this thread to Adobe, with a big thank you from the prepress industry. Look at all the different people jumping through different hoops to try and get the damn files to work.

[seetomtype]

This has been an issue for a long time and Adobe hasn't fixed it. My guess is
that the effect is more for the web/on screen community and has something
to do with conflicting color spaces when a drop shadow is applied over a spot.
It must muck up the postscript somehow. If they aren't going to fix it they should
at least offer up a dialog box that warns of impending doom for spot seps. Not that
designers read that stuff. I'm also guessing that they know about the issue, but
it'd too big a PITA at this point to fix it because the problem lies deep in their
software's workflow. What do I know though.

I use the spots to C,M,Y, or K treatment when needed and use two sets of files.

[Joe]

Originally Posted by Jeff_S

I have a 2 color job that we are trying to print via our fiery RIP to our color printer. The black drop shadow, which is set to multiply, that goes over the spot color, is converting the area behind it from spot to 4C which is lighter than the spot color. When I make a PDF, the area behind the text boxes is white

Raster/Vector balance is set at 100
Line art/ Text res is 2400 ppi
Gradient and Mesh res is 300ppi
The shadow is set to multiply

This has been an ongoing problem that I can't solve without converting the spot to 4C. That isn't an option.
javascript:emoticon(':evil:')

Am I missing something because I really don't see a problem with this? Look at this PDF. Is this what you are trying to achieve?

http://www.prepressforums.com/module.../Joe/Test1.pdf

[coley]

The problem is when the pdf needs to flatten. The rip can not handle transparency and spot colours.