In addition to installing epstopdf, you need to run Tools->Reconfigure, then restart.
You will now have an entry for EPS->PDF(ps2pdf) under Tools->Preferences->File Handling->Converts. The Converter should be something like:
epstopdf --outfile=$$o $$i
Now create a new converter definition by changing PDF (ps2pdf) to PDF (pdflatex) and click Add. It should make a new entry, EPS->PDF(pdflatex) with the same converter definition.
Now exports using pdflatex should preserve EPS as vector graphics.
In addition to installing epstopdf, you need to run Tools->Reconfigure, then restart.
You will now have an entry for EPS->PDF(ps2pdf) under Tools-> Preferences- >File Handling->Converts. The Converter should be something like:
epstopdf --outfile=$$o $$i
Now create a new converter definition by changing PDF (ps2pdf) to PDF (pdflatex) and click Add. It should make a new entry, EPS->PDF(pdflatex) with the same converter definition.
Now exports using pdflatex should preserve EPS as vector graphics.
This is on jaunty using Lyx 1.6.2.
Cheers,
Steve