Hi, Let me preface my question by saying, I'm not sure if this is the right section but it seemed to be the most fitting. If it isn't, please move it, and I apologize for the inconvenience. So the issue is that the professor that I am working with and I are getting ready to publish a paper. Well, I used gnuplot to generate the graphs and then imported them into the latex document and use psfrag to replace various parts of the postscript file with the pretty latex fonts. However, the journal of physical chemistry doesn't accept postscript files for graphics, they require it to be done as pdf graphics. The problem is that the psfrag package doesn't work with pdfs and I cannot find any such package to replace parts of the pdf to make use of the pretty latex fonts. If there is no easy solution, is there an alternative to gnuplot that works well on mac os?