Thomahawk Posted April 9, 2021 Share Posted April 9, 2021 When I set a spot color and overprint, but make it less than 100% opacity, it is not treated like a spot color anymore and does not overprint. This is a very heavy bug! Mac OSX 10.14.6 Affinity Designer 1.9.0 Dazmondo77 and loukash 2 Quote Link to comment Share on other sites More sharing options...
Staff Sean P Posted April 9, 2021 Staff Share Posted April 9, 2021 Hi Thomahawk, I've just tried this myself (both with the Layer Opacity set to less than 100%, and also with the Tint Opacity set to 100%) and it is working as intended. Could you attach a document that is failing for you and the resulting PDF file you've exported that shows the fail please? SpotOverprintTintOpacity.afdesignSpotOverprintTintOpacity.pdfSpotOverprint.afdesignSpotOverprint.pdf Dazmondo77 1 Quote Link to comment Share on other sites More sharing options...
loukash Posted April 9, 2021 Share Posted April 9, 2021 (edited) 2 hours ago, Sean P said: the resulting PDF file you've exported that shows the fail 2 hours ago, Sean P said: SpotOverprintTintOpacity.afdesign SpotOverprint.afdesign Doesn't work with PDF/X-3.Layer Opacity <100 converts to CMYK. And other related issues. See also: Edited April 9, 2021 by loukash quoted the wrong file Quote MacBookAir 15": MacOS Ventura > Affinity v1, v2, v2 beta // MacBookPro 15" mid-2012: MacOS El Capitan > Affinity v1 / MacOS Catalina > Affinity v1, v2, v2 beta // iPad 8th: iPadOS 16 > Affinity v2 Link to comment Share on other sites More sharing options...
Staff Sean P Posted April 9, 2021 Staff Share Posted April 9, 2021 22 minutes ago, loukash said: Doesn't work with PDF/X-3. Opacity <100 converts to CMYK. Unfortunately the original poster did not specify what export options they're using so I can only guess at this point. As far as I'm aware this is a limitation of the PDF/X-3 format (see below), which is why the application is rasterising those areas to an image. That said what I do find weird is that if I set Rasterise to 'Nothing' then it does actually export out with both spot colours and Overprint. See attached files. I'll pass this along to development to see why that could be the case.https://www.prepressure.com/pdf/basics/pdfx-3#:~:text=An updated version of PDF,for transparency and spot colors. SpotOverprintx3_RasteriseNothing.pdf SpotOverprintx3_RasteriseUnsupported.pdf EDIT: I do wonder if that prepressure article means transparency in raster images rather than a vector object's opacity. Quote Link to comment Share on other sites More sharing options...
loukash Posted April 9, 2021 Share Posted April 9, 2021 Just now, Sean P said: As far as I'm aware this is a limitation of the PDF/X-3 format Not a limitation of the format per se, but obviously a limitation of the PDF export library that Affinity is using. See also my aforelinked comparison thread. Compare to this:indesign_spot_opacity.indd (CS5.5)indesign_spot_opacity_x3.pdf (inspect plates in Acrobat or equivalent) Quote MacBookAir 15": MacOS Ventura > Affinity v1, v2, v2 beta // MacBookPro 15" mid-2012: MacOS El Capitan > Affinity v1 / MacOS Catalina > Affinity v1, v2, v2 beta // iPad 8th: iPadOS 16 > Affinity v2 Link to comment Share on other sites More sharing options...
loukash Posted April 9, 2021 Share Posted April 9, 2021 13 minutes ago, Sean P said: SpotOverprintx3_RasteriseNothing.pdf This just exports the spot colors as opaque while set to overprint. It doesn't recalculate the opacity values to tint values, which is what the Adobe PDF library does. As noted in my other thread, I can work around by exporting to PDF/X-4 and converting to PDF/X-3 via Adobe PDF. In the meantime I've set up a few conversion filters directly in Acrobat X, so I don't even need to take the route via InDesign or Illustrator import as described in that thread. Of course, that works for me only as long as I'll continue to work in El Capitan (or not going higher than Mojave). Which is OK for likely a few more years to come. Dazmondo77 1 Quote MacBookAir 15": MacOS Ventura > Affinity v1, v2, v2 beta // MacBookPro 15" mid-2012: MacOS El Capitan > Affinity v1 / MacOS Catalina > Affinity v1, v2, v2 beta // iPad 8th: iPadOS 16 > Affinity v2 Link to comment Share on other sites More sharing options...
Thomahawk Posted May 9, 2021 Author Share Posted May 9, 2021 Sorry, I don't have those files anymore, as it was not working, no matter how I set the PDF export, we had to print it CMYK and I changed everything accordingly. Dazmondo77 1 Quote Link to comment Share on other sites More sharing options...
loukash Posted May 9, 2021 Share Posted May 9, 2021 Meanwhile, we've investigated some of these issues further in another thread: Read the whole thread. Towards the end I'm describing the mechanism and the crazy workaround how to make almost anything overprint. Quote MacBookAir 15": MacOS Ventura > Affinity v1, v2, v2 beta // MacBookPro 15" mid-2012: MacOS El Capitan > Affinity v1 / MacOS Catalina > Affinity v1, v2, v2 beta // iPad 8th: iPadOS 16 > Affinity v2 Link to comment Share on other sites More sharing options...
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