5.13.2 Images

FOP caches images, normally indefinitely. Daisy clears FOPs' image cache from time to time, by default every 5 minutes (this is configurable in the cocoon.xconf file). So if you upload a new version of an image, it can take up to 5 minutes before appearing in the PDF. Closing and reopening your browser would also give immediately the new variant, since images are retrieved on a per-session basis (the sessionid is encoded in the image URL).