pdflatex: includegraphics-> image is different across machines.
I am totally lost. Situation is:
I am making a pdf file for presentation using pdflatex with ppower4 on Debian lenny.
There are several pages with almost identical image, the difference is slight brightness change in some part, so that that part looks like spotlighted.
Problem is: images included by includegraphics look different across computers. Some of them, brightness changes entirely.
I used same technique while ago without any problem. (I do not know what kind of computer used for that presentation. And all of computers I tested behaved well.)
At this moment, xpdf on lenny and acrobat on Mac OS/X 10.4 work as expected, however, acroread on MacOS/X 10.3, Windoes and Debian lenny do not.
I need to figure out. I am not sure whether this is a problem with pdf file or application side (acroread xpdf..)
Does anybody know?