I cannot tell you exactly how the driver appeared on my Mac; I do have Acrobat Professional installed. Certainly, there is nothing special about the driver, other than its flexibility with respect to paper sizes. Just seek out a driver for an A1 (preferably PostScript) printer. On 3/24/06 12:49 AM, "Chris" <chris at mymac.demon.co.uk> wrote: > Thanks to you and Wing Wong for the help. > > Robert MacLeay wrote: >> I have done this successfully with the Adobe PDF driver. > > Do you mean the one that comes with Acrobat? > > cheers, > > Chris