When you remove an image from a product the file itself it's not deleted from the filesystem. Also when you delete a product using Magento backend all the images are not deleted from the filesystem.
This module checks every modification to a product (upon saving and delete), understands what media files have been removed and deletes them from the filesystem.
Note: Not tested (and not made for that case) against "media" saved on database.
Backup everything while using this module!!! This module is provided "as is" and I'll not be responsible for any data damage.
Simply download the whole repository and copy everything to your Magento document root. Otherwise with modman:
modman clone https://github.com/fballiano/magento-autodelete-product-images
This module was developed on Magento 1.9. If you have a different version of Magento and the module is working please drop me a line so I can update this compatibility list.
If you have any issues with this extension, open an issue on GitHub.
Any contributions are highly appreciated. The best way to contribute code is to open a pull request on GitHub.
Fabrizio Balliano
http://fabrizioballiano.com
@fballiano
OSL - Open Software Licence 3.0
(c) Fabrizio Balliano