[CS6 on Mac]
I have a vector illustration with highlights created with gradient+screen and a shadow created with gradient+multiply. When I imported into INDD I was getting a solid ring around my highlights. So I re-saved the AI to v8 (the only version that allowed me access to the transparency flattener settings! All other versions of AI had those settings greyed out). That solved the issue of my highlights perfectly -- nice smooth fade to transparent. BUT, now my shadow, which previously was no problem, is banding. I went back to the AI, and with the transp flattener showing "high", I saved again, but this time as a version CS6 AI, but this did not solve the issue. I could easily re-create the shadow in INDD but I want to send this file out to others without these little time bombs in it. Thoughts??
In Illustrator, go to Effect> Document raster effect setting, and set it to 300 or higher. Also, if you are intending to print in 4/C, remove any spot colors in your file. Export to PDF and examine it in Acrobat, if it looks good you have no worries.
Thank you for the direction, but when I went to that drop down, it was already set to Raster 300. If someone can point me to instrucution how to upload an image to this forum, I can provide more specifics on the outcomes.