Fancy Thumbnail Program
This program is good for making images one at a time and easily customizing them with special effects like drop shadow and rounded corners.
Media Resizer Free
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Free Resources, Image Editing, Image Resize, Resize Images, Thumbnails | 
Leave a commentBatch Thumbnail Program
I’ve tried several batch thumbnail programs (for resizing a bunch of images) and th is is the best free program I’ve found.
Easy Thumnails