FastStone Photo Resizer
FastStone Photo Resizer is an image converter and renaming tool that intends to enable users to convert, rename, resize, crop, rotate, change color depth, add text and watermarks to images in a quick and easy batch mode.

Drag and Drop mouse operation is well supported. If you’re looking for a fast, reliable, and free way to convert many images at once, look no further than FastStone Photo Resizer.

The program outputs files in the most popular formats, including TIFF, GIF, JPEG, and BMP. Besides its batch-conversion skills, the application also can rename pictures in bulk.

This program demonstrated speedy performance in our tests, and we appreciate that its main window can be gussied up with several skins. And since it doesn’t cost a dime, we have no problem recommending FastStone Photo Resizer to anyone who often works with large bundles of image files.
Features:

Convert and Rename images in batch mode
Support JPEG, BMP, GIF, PNG, TIFF and JPEG2000
Resize, crop, change color depth, apply color effects, add text, watermark and border effects
Rename images with sequential number
Search and replace texts in the file names
Preview conversion and renaming
Support folder/non-folder structure
Load and save settings
And much more…