Hello, the lists. I found a CropBox setting is wrong, when used the paper=screen option and converted to pdf by ps2pdf command, as the size of pdf always shrinked to 20.9mm square. Moreover I can locate where and what is wrong. A patch is as follows: --- powerdot.cls 2006-03-16 18:36:02.000000000 +0900 +++ powerdot.cls.new 2006-07-09 15:16:50.000000000 +0900 @@ -185,7 +185,7 @@ }} \fi \fi -\ifcase\pd@paper\def\@pdfpagescrop{0 0 594 842}\fi +\ifcase\pd@paper\def\@pdfpagescrop{0 0 792 594}\fi \def\@pdfcreator{LaTeX with powerdot class} \ifpd@@blackslide\def\@pdfstartpage{2}\fi \AtBeginDocument{% --- Information of my typesetting environment --- I use powerdot of the following version: [2005/12/10 v1.4 powerdot presentation class (HA,CE)], and use ghostscript 7.07. Ghostscript version can be looked a little bit old, but the version is nice for Japanese users. With Regards, KUROKI Yusuke.