All documentation is located on the project wiki. If you find something missing, please add it (or request it).
For help with ImageResizing.NET, go to that site.
Paid support is available for CropImage.NET, but costs $99. At the moment, you’ll need to head over to imageresizing.net/support for details and the purchase link. Paid support gets you a direct line to the developer. Issues are always resolved. If your problem isn’t fixed, you’ll get a refund.