I'm trying to use FrameMaker to Save as PDF. I receive the error: Offending Command: ct_T3HdrDict. Any ideas on what this means? Do I have a control character somewhere that I cannot see? If so, how can I locate it?
Which version of FM? If it's FM10 or newer, are you using the CMYK or RGB route?
There's probably an issue with an imported graphic. Where there any page numbers displayed prior to the error message? If so, then the graphic is usually on the following page. If no page numbers, then you have go the divied and conquer route. PDF each half to see which one fails and then keep halving until you find the problem page.
I would also recommend that you use only the RGB route, unless you absolutely need to create PDF for colour press work.