Probably being real dumb here so this may seem a silly question.

I need to send of a drawing to be printed. It is an membrane overlay with 3 colours.

So far sending out for quotes I just saved as PDF. However the company I have chosen originally asked for Coral Draw format. That's I think .eps The .eps format is not listed on its own its *.ai; .eps

So basically what would you recommend as a format to offer them? BTW they have not actually said what they want yet but being preemptive and trying to learn more in advance.

Thanks

Tim