Why PNGGauntlet ?There are many online and offline applications that can compress images and also support almost all the image formats, but most of them either compromise the quality or resolution to reduce the image size. But PNGGauntlet keeps the quality and the resolution as they are and compresses the images with a very higher ratio than any other image compression tool. It also offers many customizations for the compression strategy and the amount of compression needed. I recommend you to leave all the options as they are because they are set to extreme compression and will result in the smallest file size.
LimitationsThe only limitation I found in PNGGauntlet is that it converts all the images to PNG because it is primarily the tool for PNG Compression. It accepts multiple formats but will only result in a compressed PNG image. But that’s not an issue because the only thing that matters is the size and PNGGauntlet is best in dealing with it.
NOTEPNGGauntlet requires .NET Framework 2.0 or higher to work and it is compatible with Windows 2000, Windows XP, Windows Vista, 7 and Windows 8.Link : PNGGauntlet
VerdictIf you are a web publisher or you own a large collection of images and find it difficult to manage them within the space available with you, then PNGGauntlet is an indispensable tool you need to have. Most of the time it compresses the images to less the half of the image’s original size. The tool is worth a shot, after all it’s free.