Add resize and rotate images within nautilus
Ubuntu comes with Nautilus but without an useful utility, the handy quick resize or rotate images option with a simple right-click.
To add this functionality we’ll need to install the nautilus-image-converter package:
$ sudo aptitude install nautilus-image-converter
Now restart nautilus or simply logout and back in. You’ll now be able to right-click on any image on your machine and you’ll see two new menu items:
resize images
rotate images
In addition, for each function, it will be given a quite number of options on rotation direction, resizing, etc.