When saving the files with MGI there should be an option to set the quality.
I think that when you scanned them, the dpi setting was too high, hence the large size. Tell the scanner that they are for web and the size will be much less.
Samsung Galaxy S8 review
1995-2015: How technology has changed the world in 20 years
This 2D animation about monsters is illustrated in a Van Gogh painterly style
How to get WWDC 2017 tickets
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.