I'd like to know how to resize images in ubuntu Which is the easiest tool to use?
First install ImageMagick via.
sudo apt-get install imagemagick
Open a terminal and run this command
convert -resize 20% source.png dest.jpg
It will reduce the size to 20%.
Note that the reduction is not by 20%.
The resulting image will be much smaller, 20% of the former size,
not 20% smaller than before, not much smaller.
You can also specify the size
convert -resize 1024X768 source.png dest.jpg
You can also use:
mogrify command-line tool from the same package.