Convert 24-bit PNG to Paletted 8-bit with Full Alpha Channel using ImageAlpha
ImageAlpha Converts 24-bit PNG to Paletted 8-bit with Full Alpha Channel
ImageAlpha is free, open-source software based on pngquant which Convert 24-bit PNG to Paletted 8-bit with Full Alpha Channel. ImageAlpha greatly reduces file sizes with only minor loss of quality and those images are compatible with all browsers, and even degrade well in IE6. Its Special alpha-channel-aware posterizer made more compressible images that need more than 256 colors.
ImageAlpha also achieve conversion quality better than Macromedia Adobe Fireworks by using the latest pngquant and pngnq. It directly convert 24-bit PNG to paletted 8-bit with Full Alpha Channel in an ease.
How to use ImageAlpha?
Using ImageAlpha is very easy, you have to just drag 24-bit PNG image into main part of the window. It covert Small images instantly but for large image there is the progress spinner visible in bottom right corner for few seconds.
Note: If the quality is high then try reducing number of colors, which will definitely reduce file size.