Hi
I need to make a preflight. It should warn of any text/text vectors that should have be 100% black but data is CMYK.
There is vectors in the attached example.
Any idea?
I'd just look by eye with separations preview in Acrobat grab the fill with pitstop and do a global change to black or whatever color you want to change it to. That's assuming that you have pitstop.
Yes, I have PitStop. I can change it. I need a pitstop preflight that would check these objects and show me a list of them in a report.
Not sure that would be easy. If it's one color breakdown that is consistent then maybe. If it's varying builds then you're going to have a hard time.
Yes, that black in there is 97.4%, if it's 100 pitstop could pick it out as impure black with unecessary CMY in there.
Not sure how you could lower that threshold in the preflight to say like 97 percent or above.?
If you create a new preflight profile take a look at these two settings and see if that would work. Haven't tried it but it looks like it might.
[attachimg=1 width=400]
This might be interesting for you.
https://1drv.ms/u/s!Aq0Ej0OTzYpEh6MVFLQ36GlJjX2Fmw
It's one of the Action Lists that are used in the Ghent Workgroup profiles.
It finds text objects that have a K separation higher than 85%, and a total ink coverage of +280%
With a bit of tweaking and adding LineArt to the party I think this will work for you.
joe: I have an older version, i guess 13. I havent found any check for "rich black".
If you are referring to my post that is just an Acrobat preflight. Not Pitstop.
Couldn't resist. This works, at least for the test file.
https://1drv.ms/u/s!Aq0Ej0OTzYpEh6MWGjWzQzIhAkSqMQ
It might be necessary to adjust the the 280% TAC and the 85%K values, but I think this is a very good starting point.
Most of these kind of things are from RGB that get separated to CMYK, so you just need to make sure the values represent the potential ICC profiles.
The GWG did a lot of testing to get to these values, so I think this should pretty much do what you want,
Wow, youse guys is good!! :banana:
Remap color action list where you look for a cmyk range of 50-80c, 30-50m, 30-50y, 75-100k and remap to 100k
abc: Couldnt resist too, but It doesnt work in my case. I dont know whats wrong. I imported the action a tested for the pdf and no reaction..... whats wrong?
I have just found "Check for Rich Black (K85%, TAC 280%)" in standard action list and this works!! I searched for check for Rich black in preflight and now I can use an action.
Quote from: mattbeals on August 17, 2017, 10:04:44 AMRemap color action list where you look for a cmyk range of 50-80c, 30-50m, 30-50y, 75-100k and remap to 100k
More than one way to skin a cat!!
I added this action to a preflight. It is a pity there is no possibility to fix it in the navigator...
Oops, forgot I did that!
We added that GWG as a standard one.
Just check that it works on text and vectors.
it is interesting.... the standard one works and the GWG action does not.....
abc: isnt the check for the rich black in preflight profiles in new pitstop?
what does it mean impure CMYK black in preflight profile color menu?.... and what is the diffrence between rich black and impure CMYK black?
The one with GWG in the name only works on text.
In the file text is outlined.
Yes. Youre right. I havent compared them completely.