[xwiki-users] width=120

Hello fellow xwiki users, we discovered recently the usage of the width parameter when delivering a picture from an xwiki document attachment. Surprisingly this is available in our production server, based on the grumpy xwiki 1.5, but has not been used in the UI of Curriki which has, however, been made by a team of XWiki SàRL originally. - can someone describe me how this feature is working? - is the resulting downscaled image cached in file or in ram? - has there been a different implementation between the current xwiki (e.g. 3.4) and 1.5? - except for the CPU hogging of computing the downscaled version, is there any reason not to use this feature? (e.g. RAM overloading?). thanks in advance Paul