Chris Wilson Posted September 18, 2017 Share Posted September 18, 2017 PCB images of a PCB. The black is of the traces,, mirrored. But when I, or a pro print shop, print to clear film the image is not a dense black. if I do a Print Screen of the page 4 of the files that I want to use, and open in Windows Paint, and then draw a black line across a blown up pad, it seems obvious to me that the PDF is not true dead black. Can it be altered in something like GIMP of Photoshop to make all traces dead black without losing any edge definition of the traces and keeping the images the exact same size? As say, page 4 is the only one of relevance to my needs, thanks Quote Link to comment Share on other sites More sharing options...
Ric Posted September 18, 2017 Share Posted September 18, 2017 CMYK or RGB? RGB black is not properly black it's more a very dark grey If you're printing you need to be in the CYMK colour space and have 100% black Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted September 18, 2017 Author Share Posted September 18, 2017 What do I need to do to achieve that please Ric? (In simple terms..... ) Quote Link to comment Share on other sites More sharing options...
Ric Posted September 18, 2017 Share Posted September 18, 2017 If you open the original file in photoshop and change the file properties to CYMK it will be a start. As for changing the actual paths to true back it should be a case of just filling the selections with 100% black. Im not sure if you'd lose some definition on the tracks it depends what the original file is, a raster or vector? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted September 18, 2017 Author Share Posted September 18, 2017 I'll try that, not sure what the original is, I just assumed a pdf was a pdf, can the images in a pdf be either? Thanks Ric. Quote Link to comment Share on other sites More sharing options...
Ric Posted September 18, 2017 Share Posted September 18, 2017 If it's in PDF which is a vector format hopefully it was created as a vector in adobe illustrator for example. You will know if it's a vector if you increase the size of the PDF and the edges are still smooth. If it IS a vector you'd probably be best editing the colourspace in Illustrator rather than photoshop. Perhaps Ellis can help here as i assume he works with vectors quite a lot. Quote Link to comment Share on other sites More sharing options...
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