White lines around text boxes or images with applied effects.
I am trying to send a calendar for printing to a self publishing site for a fundraiser. My pdf files look great at my end but when I load to their platform and then view their print ready files there is a degradation in the photo quality and white outlines around text boxes and images with applied effects etc. (from what I can see it is only occuring on items with applied effects) I have contacted the company who tell me that those white lines etc are showing in my source file at their end but I do not see them at my end. I have screenshot their response to my concern here, and also a copy of my version of the pdf and their print ready file side by side, as well as a couple of other images for reference. The images with red pen marks are the copies of their files with the offending lines and image degradation.
I have tried saving in about a hundred different formats, and done all the things recommended regarding flattening and overprint that I can find. I concede my skill level with InDesign is not outstanding but I have never had this issue with any other printing I have used for commercial projects. This is the first time I have attempted to use this particular company and they have been trying to be helpful but I am in Australia and they are in the US so with the time difference it is proving very difficult to get this project launched. I guess what I want to know is WILL those lines print, will the image degradation appears as it does in their files and if yes to those things how do I fix this? Am super frustrated at this point and would be very grateful if anyone can help me with a solution to this.



