拖拽就实现建立缩略图

ThumbsUp is a simple, drag & drop based utility to create thumbnails or icons for a bunch of pictures or movies and supports all image & movie formats of Mac OS X and QuickTime (including PDF and Posts cript documents). Thumbnails are either scaled by percentage or limited to a maximal size and created as JPEG, TIFF, PNG, BMP or GIF files. In addition, it’s possible to specify antialiasing, sharpening and compression to optimize the results. Finally, use ThumbsUp to convert PDF screenshots easily to other image formats using drag-and-drop and scaling to 100 percent!

What’s New in this Version
- Created icons are optimized for Mac OS X 10.4 or later.
- Thumbnailing of QuickTime movies uses the middle of the movie instead of the beginning.
- Improved overall performance.
- Removed support for Mac OS X 10.3.9 Panther.