Our upload system supports files for upload of a minimal size of 50 Kilobyte (KB) and a maximal size of 50 Megabyte (MB).
We only accept JPG files (colour space standard sRGB, 24 Bit colour depth).
Source: http://www.pixum.no/service/11742-which-files-format-size-colour-space-etc-can-be-uploaded-to-pixum.html