Reply To: InDesign/Prepress Myths

Mark, what we're trying to say is that while there may theoretically be situations in which it is preferable to have a 900-ppi file, for most people those situations will never come up in practice.  Either your file will have been supplied by the client or author as a bitmap, in which case you're limited to whatever resolution they saw fit to give you (and I'd put money on that being 300 ppi – at best – over 90 per cent of the time); or your file is in vector format, in which case you don't need to rasterise it.