BD-Sizer ..... http://www.softpedia.com/get/Multime...BD-Sizer.shtml
This is easy to use once you know how. Drag and drop and can batch process. Can add watermarks and borders. Comes at a cheap price. I use it to re-size nearly all photos I post on AP. Generally sharpen them when re-sizing. Sees to work.
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If you have trouble downloading from the above link, try this one ....... http://www.softpedia.com/get/Multime...BD-Sizer.shtml