FYI: Using the thumb() file method elsewhere in the site just works. But since this image isn’t located in the content folder I don’t have a file object to work with…
It’s a cache basically. I consists of images, 1 for each page from an uploaded pdf in the content. As this is an expensive operation, I’ld like to delegate that to a worker. But, I need those images in the front end later, and I’ld like to use the thumb() helper for that.
FYI: It works with the Asset class, but the gotcha was it needs it path to be relative to the kirby installation.
I really should read docs more thoroughly