Abhishek Singh:
The use of JPG files to convey certain types of information needs to be considered carefully. It is not just a flat out concept that JPG is "good enough". As I said before, I have found the GIF format to be better than JPG for small images with just a few colors.

Consider these examples. This schematic, the latest rendition of James' motor control with a darlington transistor, is a 325,800 byte image on my computer when it is in a 24-bit RGB bitmap format. Below you see this same image in GIF format read from a compressed file size of 4,813 bytes.



This next image is a JPG format rendering of the same picture. In this image the Corel controls were set to 40% compression and 40% smoothing and resulted in a JPG file size of 13,355 bytes. This is about 3x bigger than the GIF file and as you can see the image is fuzzy.



In this third picture I adjusted the compression and smoothing controls to get a JPG image file size of 4,332 bytes that is close to the same size as the above GIF image. Here you can see the result. I am somewhat hard pressed to try to agree that this image is any way near acceptable as a medium to communicate the desired information.



Michael Karas