IndependentArt Posted February 25, 2022 Share Posted February 25, 2022 I'm trying to export a project to PDF and get very different results, whether I choose rasterize "all" on the export or not. So on the right image I did choose rasterize all and it looks good. On the left one I didn't and get these anoying artifacts. I cannot choose "all" tho, because that would conflict with some of my other resources. So I thought, yeah, then I'd just rasterize the image before exporting, that should work, but nope, seems to be a different type of rasterization and leads to the same problem. I'm looking forward to your suggestions how to solve this. Quote Link to comment Share on other sites More sharing options...
NotMyFault Posted February 25, 2022 Share Posted February 25, 2022 This looks like banding, possibly different settings about color channel bit depth (rgb/8 vs rgb/16). You can actively create this by posterize adjustment. Is the blue sky created as a gradient, or from a bitmap image? Affinity automatically applies dithering to gradients (created in affinity). There some tricks to make banding this less noticeable, e.g. add a dithering filter (in photo), masked to the sky. We would need the affinity document to see the actual cause and ways to avoid. If there is a mismatch between color formats and profiles (e.g. RGB / CMYK, sEGB vs. AdobeRGB) this could amplify the issue. Quote Mac mini M1 A2348 LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 iPad Air Gen 5 (2022) A2589 Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps. Link to comment Share on other sites More sharing options...
IndependentArt Posted February 25, 2022 Author Share Posted February 25, 2022 Thanks. The sky is not a gradient. There's no other layers. I uploaded the image, so you can try for yourself, but I guess, I actually got it fixed: I opened the image in GIMP and set the precision of the colors to the maximum. That resultet in barely and banding after export. Chloe u Sabres Artbook.tif Quote Link to comment Share on other sites More sharing options...
joe_l Posted February 25, 2022 Share Posted February 25, 2022 (edited) 34 minutes ago, IndependentArt said: I'm looking forward to your suggestions how to solve this. I get no significant banding when I export to PDF with your uploaded image. What export setting did you use? Maybe a screenshot from the More window would be good. EDIT: You uploaded the image modified by GIMP. The original file would be helpful. Edited February 25, 2022 by joe_l Added more information Quote ---------- Windows 10 / 11, Complete Suite Retail and Beta Link to comment Share on other sites More sharing options...
IndependentArt Posted February 25, 2022 Author Share Posted February 25, 2022 This is my settings: Nope, this is not the modified image. The modified is like 26 mb. I attached it. Chloe u Sabres Artbook2.tif Quote Link to comment Share on other sites More sharing options...
IndependentArt Posted February 25, 2022 Author Share Posted February 25, 2022 Oh, I just noticed, it makes a difference whether I choose "convert color space". Guess, I don't do that on my other project. NotMyFault 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.