Using overprint fill function to a .psd file?

[sophiet39904265]

Dear all

I am trying to print a gradient effect using 4 pantones.

I used duotone color mode for tuning the file into pantone and there are 4 psd files in total - each for one pantone.

The background is transparent.

As the production house requires to have a pdf/ai file for output,

I inserted those 4 .psd into indesign and try to generate a pdf.(As ai do not support transparency so I used indesign)

But then I found that .psd file cannot be overprint.

If the 4 .psd cannot be overprinted, there might be some white gaps between the gradient.

I tried to transferred to .psd to .eps and .pdf but the transparency cannot be shown.

What should I do?

From the desperate little potato

[Scott Citron]

If it were me I'd create the gradient item in Photoshop and then place the .psd file into InDesign.

[sophiet39904265]

Thanks for your reply!

But the color mode of the .psds are changed to be duotone in order to tune the object to be pantone colors (i.e the four .psd are Pantone A color mode, Pantone B color mode, Pantone C color mode and Pantone D color mode. As their color modes are different so cannot merge them together into one single .psd file, that's why I cannot create the gradient in the photoshop.)

[rob day]

Try setting the PSDs to Multiply. Can you show a screen capture of the page?

[sophiet39904265]

Thanks Rob!

The problem has been solved.

I have dragged the .psd into ai and then embedded the .psd to enable the overprint fill function.

If the .psd is not embedded, the overprint fill cannot be used.

Also the transparency of the .psd can be kept in the ai.

Really thanks a lot!

[vinny38]

Hmmmmm.... When I see "Spot colours" and "Transparency effects" (or "overprinting") in the same sentence, I never feel too great...

I wished we could have a look at your design in order to feel better....

That said, as far as I understand your question, it appears to me that Trap settings is what you need here. (see Apply trap presets in InDesign).

I also suppose that talking with your printer about this would also be a good think....

[rob day]

then embedded the .psd to enable the overprint fill function.

You should communicate with the printer that you are setting an overprint on an image, printers often disable overprints. Also, I assume you are printing 4 separated spot colors and the job isn't being converted to process CMYK? If the job is process you shouldn't use spot colors and duotones.