I always thought styled images are smaller than original ones in file size. So the main reason for styling was to reduce the file size. But today I noticed it isn't always the case. For example:
I downloaded an image
abcd.jpg from facebook and then uploaded it to my Drupal website.
Originally the image was
405.3 kB which is
2048px X 1536px.
After downloading the same image from my drupal website the image is
698 kB which is
1100px X 845px.
Style Effect:(Scale width 1100)
And when I checked I found the same in most of the cases. Can anything be done about it without compromising image quality?