Nautilus Image Converter is a plugin or extension for Ubuntu‘s file manager that lets you quickly and easily resize and rotate image files. Once installed, all you have to do is right-click a picture file, or a group of them, and choose either “Resize Images…” or “Rotate Images…“.
In the Resize Images dialogue you can choose from predefined sizes via “Select a size:” (96×96 & 128×128 for thumbnails or avatars, as well as wallpaper dimensions for older 4:3 screen resolutions 640×480, 800×600, 1024×768 & 1280×960), “Scale:” it to a certain percentage, or choose your own “Custom size:“.
You will note that for “Append” the default is to save these altered images as copies with .resized added to the file name. You can choose “Resize in place” instead, but note that this overwrites the original, so use with caution.

With the Rotate Images dialogue, you can choose from 3 predefined angles via “Select an angle:“, being 90° clockwise, 90° counter-clockwise and 180°. If you need a bit more precision than that, just define your own angle with “Custom angle:“.
Like the resizer, the default behaviour is to save the output as a copy, this time with .rotated appended to the file name, though you can choose ”Rotate in place” to overwrite the original.

This handy little plugin is installed very easily via Synaptic, but even quicker is to enter the following into a terminal:
sudo apt-get install nautilus-image-converter
The image converter options will be available in the context menu after a reboot, or you can log out and back in again if you want the changes to take effect immediately.
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Guide to Customising & Enhancing Nautilus
I am running Ubuntu 10.4.
I installed nautilus-image-converter but when I right click on a picture I do not get any option to resize or rotate.
I am using Nautilus 2.31.1
I found out on the forums that you have to log out, and log back in, after installing the image-converter package before it shows up in the Nautilus right-click menu.
Thanks for making this available.
What an excellent program, and only 30 KB download (though I’m sure it uses imagemagick or some other libraries underneath, like the good non-Windows-bloaty program that it is).
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Thanks for this Aplucations, this Nice and best rezize picture this work in my Ubuntu 11 i386 Thanks
Har gjort ovanstående procedur men kan inte hitta programmet??
sudo apt-get install nautilus-image-converter works perfectly fine for me and others using this guide, as you don’t need any special repositories for Ubuntu to find it (it’s in the standard repos). Not sure why you can’t find it (I assume you used that command in a terminal), but if you want further help, please ask in English to save me having to translate it (luckily I recognised it as Swedish). If you seriously can’t install it with that command, or looking for nautilus-image-converter in Synaptic, Google for it and you might be able to find a page to download it from. Cheers
Sorry to post this here, but I cannot seem to find this question anywhere (including the Mint forums)…
I have Mint 9 & Mint 11 running on two PC’s. In 9, my photos show as small thumbnails of the actual picture. In 11, all I have is that default icon of a sunset for every photo…
Is there a way to get my true icons back?
OK, this can be due any of a number of factors, including having changed the icon theme. I’ve seen icons for JPGs stop being the preview and just show a generic icon because of that, though most themes don’t mess with that. I would look at your Nautilus settings (I gather that is your file manager): Edit > Preferences > Preview and make sure Show thumbnails has Always as the option.