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The proportion for all the A sizes is the square root of two. A0 is one square meter, implemented as one meter times the fourth root of two on one axis, by one meter divided by the fourth root of two on the other axis, so the aspect ratio is the square root of two to one. A1 is A0 cut in half, A2 is A1 cut in half, and so on. Thus, the aspect ratio of all the A sizes is the same.  Ciao, Paul D. DeRocco Paul mailto:pderocco@ix.netcom.com > From: Jim Wingo > > The simplist way to determine this is to find the relationship between > the two sizes for height and width. If both H & W are proportionately the > same when A3 and A4 are compared, then that proportion value should > produce good results. For example: if A4's H & W are each 95% of A3's H & > W, then that value should work. If, on the other hand, H is 95% and W is > 93%, then if you size the output for 93% it will fall short in H. These > values are for example only, I do not know the proportions.  Turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for list instructions.