What do you mean? The filesize or the “physical” image size? How much space do they fill? 96*96 is enough for an icon like this:
.
And you shouldn’t use greater ones.
In the extension I can change dimensions of image which will result in quality and size loss but i want something like converting pic to web format in which the quality remains same but file size reduces
Actually the taifun image extension is pretty useful.
It infact increased quality while decreasing the size.
So this post is now solved
Solution by Robert
Thanks