How to compress png image files upto 90%

PNG – Portable Network Graphics – is a high Quality format for Images.PNG is the output for most of the screen capture softwares. One of the problem with png format is it large size , Windows Snipping tools , Ubuntu screen shots default output is PNG,  but size is bigger , but we can reduce size with PNGGauntlet.PNGGauntlet is a free software used to compress PNG files without losing it’s Quality.Bulk compression is possible.


Bulk Optimizer
Any format to png files
Free software