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InDesign Problem with Shadows on exporting for PDF/X-1a:2001


I have a document with a rectangular box sitting over a picture using a drop shadow in InDesign.

I have to export the PDF as a PDF/X-1a:2001 for the printer.

However whenever I export the PDF using PDF/X-1a:2001 (compatibility Acrobat 4, 1.3) it puts a very small keyline on the picture around the shadow. This doesn't happen when you make it compatible with Acrobat 5. However it's then not PDF/X-1a:2001 compliant, so i need to find a way to stop it making this keyline while being Acrobat 4 compatible.

Any tips of how to stop this keyline?
It does line up in the document. Its one complete picture behind the box. Thats my whole point, PDF export is making it appear odd behind the shadow.
thanks :eek:)


Active Member
I think you will find that this is just a hairline and won't show up when printed.

Just ask for a proof to be printed out before going ahead with the entire run to check.