Thread:Daifukkatsu/@comment-24398933-20140626204718/@comment-24398933-20140626212334

Well there are a few points that I would like to point out:

1)Reducing the size of the image on a page doesn't make it lighter, the browser take the image and resizes it, making it impractical to have multiple PNGs on a single page.

2)JPGs have problems with the loss of the info of some pixels when saving, but this is nearly irrelevant with bigger images, namely 800+px.

3)  Some alterations to a JPG image can be performed losslessly (that is, without recompression and the associated quality loss) as long as the image size is a multiple of 1 MCU block (Minimum Coded Unit) (usually 16 pixels in both directions, for 4:2:0 chroma subsampling).

4)GIFs are the worst choice for big images due to only supporting 256 different colors, only 1 byte, and is best for making animations. I'm speaking with the experience of working as a Web Programmer before, where I had to optimize the size of a page.