Download of ThumbsUp 4.5.3 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus.
The unique ID for this app's bundle is com.devon-technologies.ThumbsUp. The latest version of the application is supported on Mac OS X 10.5 or later. Thumbsup.dmg.zip and thumbsup.app.zip are the most frequent filenames for this application's installer. The program is included in Design & Photo Tools. The most popular versions of the software are 4.5 and 4.4. This free software for Mac OS X is an intellectual property of DEVONtechnologies, LLC.
From the developer:
ThumbsUp helps you create thumbnails for your website in seconds. Drag them to its icon and it converts them in a batch with the previously set options. ThumbsUp works with all image formats supported by OS X including PDF documents and QuickTime movies. You can set the desired size, quality, sharpening, and anti-aliasing; scale images by percentage or maximum size.
You may want to check out more software for Mac, such as Vectoraster, Photo Recovery or ImageConvert, which might be related to ThumbsUp.