XnView is a software to view and convert graphics files, really simple to use; with support of more than 200 graphics formats. It also offers simple picture editing functions, such as mirroring, filters, etc. and allows processing whole directories in batch-mode. It generates dia-shows, takes screenshots, and generates HTML-indexes of selected images with thumbnails.
Unfortunytely, this program is available for all Windows platforms, plus Linux, FreeBSD, and several Unixes, but currently not for OS/2. However, the author offers a voting function in the download section where OS/2 is listed. Go there and vote: an OS/2 version can't be that unlikely since XnView is more or less a frontend for NCONVERT and NVIEW, which already do exist as an OS/2 version (both are downloadable from that site, too).
http://www.xnview.com
(go to Download page of XNView)
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