1)   Smart Converter CL 1.9.24
Smart Converter CL is a heavy-duty command line batch image converter that supports 88 image formats and works with Formula 1 speed. Conversion and batch processing (resizing, cropping, etc.) are done through command line only (no GUI)!
Batch, converter, image, graphic, resize, rotate, flip, mirror, swap, negative,

 2)   IvanView 1.2.15
The new feature-rich version of the image browser IvanView is now even more powerful. It's capable of viewing more 60 image formats and has unsurpassed conversion capabilities in 15 of the most popular formats. You simply must see it!
image, viewer, browser, picture, print, edit, converter, BMP, DIB, RLE,

 3)   Smart Converter 1.9.22
A multipurpose program for viewing, converting, and editing images, with a rich tool set, and various effects and filters. Batch mode offers several operations at one pass, such as resizing, converting format, renaming, and adding captions.
Batch, converter, image, graphic, resize, rotate, flip, mirror, swap, negative,

 4)   Able Graphic Manager 2.4.5
View, convert and print graphic files in normal, batch and command line modes. Input formats: DXF, TIF, JPG, JP2, PCX, BMP, DIB, RLE, PNG, WMF, EMF, TGA, VDA, ICB, VST, PIX, PXM, PPM, PGM, ICO, CUR. Output: JPG, TIF, PCX, PNG, BMP, GIF,TGA,WMF,EMF.
dxf, bmp, jpg, tif, pcx, png, tga, pxm, ppm, pgm,

 5)   Able Batch Converter 2.9
Able Batch Converter allows you to easily convert multiple graphic files at the click of a button. Program can take any number of images in any format (over 90 file formats supported) and convert them to any of the twenty most popular formats.
convert, jpg, png, bmp, tif, pcx, gif, dib, rle, tga,