pngacidbath is the one true PNG image brute force compressor. While other tools simply run down a list of "intelligent" compressor algorithms (some known as zlib methods), pngacidbath tries every byte combination to come up with THE smallest file.
- Turn off brute force for certain tasks (e.g. palette reordering) for larger files
- Use your GPU to complete the trials in less time
- Halt execution and be able to continue where you left off at another time