If you want to optimize your large JPG picture you can use the Imagemagick program which is installed by default in Ubuntu. From Gnome-Terminal go in your folder where you keep your pictures, for example
and for optimize only one picture write
For optimizing all the pictures in that folder write
85 reprezents the quality of the pictures.
Good luck!
Source is my other lame blog...
cd /home/user/Pictures
and for optimize only one picture write
mogrify -quality 85 Picture.jpg
For optimizing all the pictures in that folder write
mogrify -quality 85 *.jpg
85 reprezents the quality of the pictures.
Good luck!
Source is my other lame blog...