Free Open Source PNG to EPS and JPG to EPS Converter for Windows
This software was compiled by RichardSocher and is published under the GNU General License. It uses mostly the nice Sam2p software by Szabó Péter (pts -@- fazekas.hu) (downloaded from http://www.inf.bme.hu/~pts/sam2p/ and recompiled with his consent) and adds a batch file in order to make the conversion from jpg or png files to eps as simple as possible.
All you need to do to convert png files to eps files is to click on batchConvertAllPngToEps.bat inside windows explorer. This batch script then creates eps files for all files that are in the same folder. If you want to include these in a latex document, just omit the extension:
then pdfLatex will use the png file and Latex may use eps file for DVI.