>>>>> "Albert" == Albert Astals Cid <aacid at kde.org> writes: Albert> What changes is what Adobe Acrobat renders, not what us render. Ah. Got it. I misunderstood the previous post. Albert> Still don't understand why if c′ = m + α × (c − m) with m = 0 Neither do I. -JimC -- James Cloos <cloos at jhcloos.com> OpenPGP: 1024D/ED7DAEA6