Contenta-Converter Basic

Batch convert your photos. Optimize photos for internet, batch rename and organize in subfolders. Practical tool to prepare email attachments.Handles many image formats (jpg, jpeg2000, gif, png, tiff, bmp, wbmp, targa, ppm, pgm, pbm, xpm, ico, cut, g3, dds, iff, jng, koa, mng, pcd, pcx, ras, sgi)Select your images, setup your conversion parameters, preview quality and file sizes and press Start!

It does batch file renaming (Ex: CameraModel_Date_Filename.Extension), organize into sub-folders automatically (Ex: CameraModelCreationYearYearmonthday).It integrates with windows explorer so that you can convert directly via a right-click menu when browsing your hard disk. Best of all, it is FREE. Optimized for multi-core processors. Speed up your conversions by using 100% of your CPU.
What's new in this version:
Support for Yosemite.