Adobe Systems Inc has been buying assiduosly, but now it’s time to get rid of something. It is creating, and plans to spin off, a new Seattle-based company, Luminous Corp, which will continue to develop, market and distribute Adobe prepress applications, but will retain an equity stake. It maintains ownership of some core technologies for Adobe prepress products, the company said; it has designated Luminous as the exclusive distributor of version 1.0 of the Adobe Virtual Network product. Financial terms of the agreement were not disclosed.