From STD Utility
STDU Extractor is a simple software for extract image illustrations from PDF, XPS and FB2 document to image file. You can preview all images, which contains into source documents and select only illustrations that you need to extract.
STDU Extractor can save picture in various image format (bmp, gif, png, jpg).
STDU Extractor don't to make worse resolution of source picture, when extract it.