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Dot gain conversion in Acrobat
I have a 1000 page plus file coming in that needs to be converted to grayscale and printed offset. So far I have 2 test pages to look at. They were created out of word and supplied as an rgb files by the client. I will need to convert them to grayscale. So far easy. On each page is the client logo as part of a running head and somewhere else on the page a logo fom one of their clients. Unfortunately all these logos have a backgound of RGB 252,252,252 or similar. When I convert them to grayscale I get a scum dot (.4 - 1.2%) that will print. I have been trying to come up with a way of applying a custom dot gain curve in the conversion that will sharpen this scum dot. I have Acrobat 7 and 8, Pitstop 6.5 and Callas pdf Toolbox to work with. In photoshop I can easily create a custom .csf profile with a compensating dot gain curve (works beautifully in Photoshop), but I haven't found a way to load it in Acrobat or the plug ins. Any thoughts?
To save time in I will state that going back to the client and having them fix it is not an option. Like many sales forces, our's does not want to rock the boat.
My other, though maybe less elegant option, will be to creat a sharpening curve on the platesetter. The issue with that is the Spinjet, which is upstream from the sharpening process, will show the scum dot. The issue then is all liability for any issues that we miss and can't proof correcctly, fall on us since we will have to assure the client the issues will be fixed in plating.
Thanks for any and all input (except for "have the client fix it").
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