oscThumb contribution uses the open source project phpThumb to create thumbnails of your images.
Instead of sending the full size image to the browser and let the browser resize it, which can seriously slow down the loading time of your pages and look ugly, oscThumb will generate thumbnails and save them in a cache folder on your server, for future use.
It used Imagemagic (if available) or GD library to generate gif, jpg and png thumbnails.
In my knowledge, this is the only thumbnailing contribution that can really protect your images agains thieves!
Following features are included:
Server caching: thumbnails created are saved on the server, no need to re-generate them for each visitor. Automatic cache cleaning function included (size, age, nbr of files).
Watermarking: place a text or image watermark on your images to protect them from thieves.
Security against URL manipulations: filenames encryption make it impossible to find the original image and URL hash check make it impossible to manipulate URL to display images in original size.
Display options: add a frame around your images or buttonize them.
New size for product image on product_info.php page, selectable from admin.
Easy installation: few files to copy, 3 files to modify. Done.