I downloaded FastStone Image Viewer someone here recommended to bulk change file names and it works well with bulk changing size too. Free download to boot!

FastStone Image Viewer - Powerful and Intuitive Photo Viewer, Editor and Batch Converter

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Jerry Peck, Construction / Litigation Consultant
Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
www.AskCodeMan.com