> how can I turn text upside down, will say: > rotate by 180 degrees?
As far as I know this can only be done with appropriate device code. And of course it depends on how much text you want upside down. Here is a little example in Postscript that rotates a short text fragment within a line of text (the fragment must fit on one line). If you need larger blocks I guess it would be better to have a start macro (which translates and rotates the coordinate system) and an end macro (which restores the original coordinate system) instead of a single macro. .\" .\" -------------------------------------------------------------------- .de UD .nr WD \w'\\$1' \Z'\h'\\n(WDu'\ \X'ps: exec gsave currentpoint 2 copy \\n[.ps] u -.45 mul add \ translate 180 rotate neg exch neg exch translate'\ \\$1\ \X'ps: exec grestore''\h'\\n(WDu'\\$2 .. .\" -------------------------------------------------------------------- .ll 15c .po 3c .sp 3c .ps 12 .vs 14 Hello, .UD world ! This particular example saves the old coordinate system and then rotates the coordinate system around the current point: gsave currentpoint 2 copy translate 180 rotate neg exch neg exch translate and later restores the saved coordinate system: grestore the rest is just trickery to keep the upside-down word in line. If you want a whole page upside down, it would of course be easier to rotate 180 degrees around one corner and then move the coordinate origin to the opposite corner.
