A LIST OF FREE IMAGE EDITORS AND CONVERTERS

PowerBatch 2.7 – 1.6MB
- Batch renaming, resizing, converting, printing, rotating, colour adjustment, cropping.
- Crop with aspect ratio confinement.
- Built-in FTP client!
- All program files are contained in a single folder.
- Converts JPEG, GIF, PNG, TIFF, BITMAP and JPEG2000.
- Supports animated GIF and multipage TIFF.
- Contact sheets.
- Image effects.
- Add text.

Paint.net – 4.9MB
- In development.
- Clean GUI.
- Developed with help from Microsoft.
- Requires 24MB .NET Framework 1.1 to run.
- Limited layers support (cannot be moved on canvas).

Pixia 3.1 – 3.6MB
- Not much known about this one yet.

Photofiltre – 1.6MB
- Multiple images open at once.
- Many plugins.
- More than 100 filters.
- Feature packed.

FastStone Image Viewer – 2.4MB
- Convert major formats (inc. PSD).
- Lossless JPEG rotation.
- Magnifier viewing.
- EXIF support.
- Resizing, flipping, rotating, cropping, colour adjusting tools.
- Crop with aspect ratio confinement.
- Compare images side by side.
- Batch image converter/resizer.
- Supports animated GIF and multipage TIFF

Xnview – 2.1MB
- Utility for viewing and converting graphic files.
- Imports 400 graphic file formats.
- Exports 50 graphic file formats.
- EXIF.
- Copy, cut and crop.
- Brightness and contrast adjust.
- Modify number of colours.
- Filters and effects.
- Windows print (Contact Sheet) and TWAIN support.
- Supports animated GIF and multipage TIFF.

GIMP – 7.3MB (Windows version)
- Probably the best open source contender to Photoshop.
- Requires GTK+ 2 runtime environment – 3.5MB.
- Layers support.
- Difficult to get used to GUI layout (or so I’ve read).

Thanks to Tim

Stefan Mischook