We are experiencing some problem with InDesign when using objects which have a semi-transparent content on a non-white background.If we export them from InDesign as PDF and print them, we get white boxes instead of transparency.
We can see the boxes if we display the PDF using the OSX preview, but the boxes are not visible when using Acrobat Pro. But the white boxes also get printed.
We already checked that the attributes for that object should be fine. If we open some old file, and copy the content of the new file into the old file, the boxes are gone and the exported PDF is fine.
Does anyone know what the problem with the "new" file is?
Thank you your help!
See attached InDesign file:
The exported PDF file:
The exported PDF file is a PDF/X-3 file. Although such files support ICC color management, they don't support live transparency. The transparency is flattened to whatever setting you specified which by the way, really needs to match the resolution of the output device but even then, might still show the artifacts that you are seeing.
You should be using PDF/X-4 for reliable PDF print publishing workflow. PDF/X-4 supports both color management and live transparency. Transparency occurs at the RIP where it belongs!!!