2jpeg
From MohidWiki
2jpeg is a nice little windows command line utility that converts other graphical file formats such as bitmap, gif and png to the jpeg format. It also allows some rotating/stretching/resizing of the original images
Contents
Syntax
Convert an image
>2jpeg s="c:\imagesfolder\image.bmp" -sf d="c:\out"
Convert all the bitmap images in a folder
>2jpeg s="c:\imagesfolder\*.bmp" -sf d="c:\out"
Convert all the images in a folder
>2jpeg s="c:\imagesfolder\*.*" -sf d="c:\out"