To go from latex to pdf I use dvips and the adobe online encoding. I can't use pdflatex or PDFTex because my documents use gnuplot generated tex files that contain postscript (this allows me to have LaTeX render the text part of the graphs, and makes it easier to adjust the axis labeling, which on 3D plots sometimes conflict with the axis and need to be moved, depending upon the view perspective). I go from ps to pdf via Adobe online encoding because sometimes ghostscript (ps2pdf) messes up, and you often can't tell until you have printed it - but sometimes its really obvious (like putting letters on top of each other). Distiller (online encoding) gets it right. I have a prosper class latex document (PDF slide show). It needs to be A4 landscape. It also must be done dvi -> pd -> pdf because prosper uses pstricks When I use dvips -Ppdf I get a landscape but it is letter, right side of slides chopped. If I use dvips -Ppdf -t a4 It does get done a4 by online - but portrait, so I have to rotate it to properly view it. If I use dvips -Ppdf -t a4 -t landscape I still get portrait A4 -=- Does anyone know either a) A proper option sequence to give to dvips to get A4 landscape out of Adobe online encoding b) A proper way to modify the output of dvips (the postscript file) to make sure it really is landscape a4 c) A way to modify an existing PDF file so that it is landscape by default Either one of those (a would obviously be best) would solve my problem. Thanks for suggestions.