I connected Images to Recipes in my CakePHP models now, so if you open the recipe details page you can see all attached images. I want to use phpthumb to generated thumbnail for all images so I added the package to the vendor directory. The workflow for this should enable the user to upload an image while editing recipe details and phpthumbnail should then generate the thumbnail on the fly. This is only possible if the GD library is installed, so the user should disable this feature from the configuration page if neccessary. If it is turned off, the recipe details page could show the full image or just links to the image files.