Convert Gnuplot EPS output to PDF with crop and rotation function
When using gnuplot postscript enhanced color terminal output, you get eps as output. There are several options for converting to PDF.
Import with inkscape, press F2 and select background/white canvas and press SUPR. Then Save As PDF, only drawing. Or with inkscape --export-area-drawing --export-pdf=out.pdf input.eps
Using epstopdf: epstopdf --autorotate=All -outfile=outputfile.pdf inputfile.eps
Here some sample scripts (tested with LINUX) for doing advanced conversion with rotation and cropping. Customize the scripts by yourself according to your interests.