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Can't Batch Process-Convert CMYK to Grayscale & Preserve Spot Colors

Posted: 10-13-2008, 05:01 PM
jack sellers
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Acrobat Pro 8.1.2 - Mac OS 10.4.11. Anyone have a way to batch process this request? I have files (many) that have CMYK images and spot color graphics. I want to convert the CMYK to grayscale and preserve the spot colors.
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Responses to "Can't Batch Process-Convert CMYK to Grayscale & Preserve Spot Colors"

jack sellers
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Re: Can't Batch Process-Convert CMYK to Grayscale & Preserve Spot Colors
Posted: 10-14-2008, 10:14 PM
Spot colors are used within INDD and from Illustrator Vector images. Are you saying that Acrobat Pro 9 can batch process these to grayscale and keep the spot colors?
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jack sellers
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Re: Can't Batch Process-Convert CMYK to Grayscale & Preserve Spot Colors
Posted: 10-14-2008, 10:55 PM
Thanks Jon,

Now...I go the Boss and beg for an upgrade.

Jack
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Jon Bessant
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Re: Can't Batch Process-Convert CMYK to Grayscale & Preserve Spot Colors
Posted: 10-15-2008, 04:52 AM
Hi Jack,

Are these spot colour objects vector or bitmap monotone/duotones?

Acrobat 9 Pro is the way forward (or Enfocus Pitstop) but need more info.

Jon
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Jon Bessant
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Re: Can't Batch Process-Convert CMYK to Grayscale & Preserve Spot Colors
Posted: 10-15-2008, 05:32 AM
Acrobat 9 Pro can now select images and convert to greyscale (leaving
pantone).

This custom fixup can be applied to a droplet and your PDFs can be
dropped onto this icon/application locally ...

However, if any images are using Pantone then it's time to use Enfocus
Pitstop for more specific conversions ...

Jon
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jack sellers
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Re: Can't Batch Process-Convert CMYK to Grayscale & Preserve Spot Colors
Posted: 10-16-2008, 03:14 PM
No monies for the upgrade. I tried this with Acrobat 8 and it converts Both CMYK and SPOT to Grayscale on all four plates... C, M, Y, and K. So that doesn't work. Is there a script that does...tell " Adobe Acrobat Professional" Advanced/Print Production/Convert Colors.../ Convert all but spot colors with Profile of Gamma 1.8 and Don't Embed Profile and Preserve Black Objects?.
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Jon Bessant
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Re: Can't Batch Process-Convert CMYK to Grayscale & Preserve Spot Colors
Posted: 10-17-2008, 05:29 PM
Jack,

Yes, that script is called Acrobat 9 as already described

Jon
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jack sellers
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Re: Can't Batch Process-Convert CMYK to Grayscale & Preserve Spot Colors
Posted: 10-17-2008, 07:56 PM
Jon,

In Acrobat 9 is this conversion executed thru Preflight or Print Production?

Jack
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Jon Bessant
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Re: Can't Batch Process-Convert CMYK to Grayscale & Preserve Spot Colors
Posted: 10-19-2008, 12:50 PM
Both - uses the same engine ...

Jon
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