Martin Bailey is senior technical consultant at Harlequin, a technology provider. Recently, Bailey sat down to outline the ins and outs of file formats and industry associations. The following is an excerpt from Bailey's discussion: Q. Why do we need another file format? Isn't PDF enough? Bailey: PDF/X is not an alternative to PDF; it's a focused subset of PDF designed specifically for reliable prepress data interchange. Q. What can I do in PDF/X that I can't do in PDF? Bailey: Nothing. The important point is that you can do a lot of things in PDF that are not appropriate for graphic arts use, and that can cause

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