The initial version of VPS in 1995 was single-color, Mac only, and was analogous to a two-sided single separation “ blueline” that was created in prepress for many years.
When prepress was based on film, staff could hold up film to the light and look through it to ensure things like registration marks lined up. With digital prepress and platemaking, prepress staff had no visible way to preview the printing plates and anticipate their alignment, so we developed a software approach. Its single task was to preview to users that the front and back of signatures would properly line up with each other in a CTP Computer-to-Plate environment. VPS Virtual Proofing Software was the first application I designed at Creo.
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