We have a 260 page 2 spot colour tabular catalogue containing 18 different languages and using several latin and non-latin typefaces. All the fonts preview fine on screen but when I export to press-optimised PDF, characters are being dropped or substituted all over the place through all of the different typefaces - even the english language version. We export to PDF all the time but I've never seen this problem. What am I doing wrong?, is there a setting that I haven't checked or is this an Acrobat 'problem'? (IDCS and Acrobat Pro 6)