Filestack's transformation engine brings the addition of more complicated transformations in a powerful and flexible package. Gone is the requirement that you have a Filestack URL before you can convert a file. Now you can pass us any publicly accessible URL and we will slice and dice it into the format you need. Your conversions can also be more sophisticated as we have created a conversion task router that allows for a real order of operations for file conversions. So now you can make sure your image is cropped before it is resized, or resized before it is cropped, or even resized before it is cropped, rotated and watermarked.
There are two ways to format your transformation URLs