Converseen is an open source batch image resizer and conversion tool written in C++ with the powerful Qt4 libraries.
Thanks to the Magick++ image libraries it supports more than 100 image formats. You can convert and resize an unlimited number of images to any of the most popular formats: DPX, EXR, GIF, JPEG, JPEG-2000, PDF, PhotoCD, PNG, Postscript, SVG, and TIFF.
With Converseen you can save your time because it allows you to process more than one image with one mouse click! More Info »
Converseen is very simple: it features a very simple user interface without strange options.
With converseen you can:
Carry out a single or a multiple conversion.
Resize one or multiple images.
Compress images for your web pages.
The .exe installer contains adware. However, according to Converseen's creator the portable version - which is in a zip file - is free from adware.