44+ Jpg Png Meaning Images. Let's start with the basic definitions. The difference between png and jpg.

How To Convert An Image To Jpg Format from www.howtogeek.com

A jpg should be used in any situation when it's important to have a small file. Image editing, web images, images involving layers, like. Jpeg (or jpg, for the file extension;

I doubt on board memory of an end user device.

Beyond the initial saving as a jpg. I doubt on board memory of an end user device. Less memory means smaller file size, and also less bandwidth use. Photo images have continuous tones, meaning that adjacent pixels often have very similar colors, for example, a blue sky.