Wiseval Photophant is a free software for batch resizing, converting and renaming your digital photos and images from and to JPEG, BMP, PNG, TIFF and GIF formats.
Key Features

• • 100% Free for home use. No spyware, adware, banners etc.
• • Resize, rename and convert images in batch mode
• • The most fastest image resizing algorithm
• • Supports JPEG, PNG, GIF, TIFF, and BMP formats
• • Supports Watermarks
• • Variable options and settings for advanced users
• • Built-in size templates: iPod, iPhone, Facebook, DVD etc.
• • Configurable compression / resolution ratio
• • Load / save settings and image lists
• • Clean, easy to use interface
• • Small installation file ~ 2MB
• • Portable version is also available

Free for home use Windows 95/98/NT/2000/XP/Vista