Python tool to resize a bunch of images quickly.
Install via pip using:
pip install image-resizer
Get the cutting edge version using:
pip install -e git+https://github.com/ssundarraj/image_resizer.git#egg=image_resizer
or
Clone/download the git repo, and install using python setup.py.
image-resize input_file.jpg
This will resize the image to 500x500 and save it as input_file_thumbnail.jpg
To resize to a particular size use -s:
image-resize  -s 1000 1000 input_file.jpg
To append something other than _thumbnail to the new image use -a:
image-resize  -a _small input_file.jpg
This will same it as input_file_small.jpg